Add actual values of web element in SeleniumWebDriver error message

[dmytro-ndp]

What does this PR do?

It adds actual values into error messages which are produced by those methods of SeleniumWebDriverHelper class which are waiting on certain text of web element.
To have correct error messages we need to stop sharing WebDriverWait instances by WebDriverWaitFactory class with the same timeout.

Examples of error message:

org.openqa.selenium.TimeoutException: 
Expected condition failed: 
expected:
'HelloWorld'
but was:
''
 (tried for 10 second(s) with 500 MILLISECONDS interval)
Build info: version: '3.0.1', revision: '1969d75', time: '2016-10-18 09:49:13 -0700'
System info: host: 'slave2.codenvycorp.com', ip: '127.0.0.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.10.0-862.11.6.el7.x86_64', java.version: '1.8.0_144'
Driver info: org.eclipse.che.selenium.core.SeleniumWebDriver
	at org.openqa.selenium.support.ui.WebDriverWait.timeoutException(WebDriverWait.java:80)
	at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:265)
	at org.eclipse.che.selenium.core.webdriver.SeleniumWebDriverHelper.waitTextEqualsTo(SeleniumWebDriverHelper.java:734)
	at org.eclipse.che.selenium.core.webdriver.SeleniumWebDriverHelper.waitTextEqualsTo(SeleniumWebDriverHelper.java:750)
	at org.eclipse.che.selenium.core.webdriver.SeleniumWebDriverHelper.setText(SeleniumWebDriverHelper.java:126)
	at org.eclipse.che.selenium.pageobject.CodenvyEditor.doRenamingByLanguageServerField(CodenvyEditor.java:2248)
	at org.eclipse.che.selenium.languageserver.csharp.CSharpClassRenamingTest.checkRenaming(CSharpClassRenamingTest.java:83)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:696)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:882)
	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1189)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

[ERROR] checkoutReferenceByHashCommit(org.eclipse.che.selenium.git.CheckoutReferenceTest)  Time elapsed: 103.65 s  <<< FAILURE!
org.openqa.selenium.TimeoutException: 
Expected condition failed: 
actual value:
'Change file app.js'
didn't contain:
'test message /n some /n'
 (tried for 10 second(s) with 500 MILLISECONDS interval)
Build info: version: '3.0.1', revision: '1969d75', time: '2016-10-18 09:49:13 -0700'
System info: host: 'unused.ua.codenvy-dev.com', ip: '172.19.20.137', os.name: 'Linux', os.arch: 'amd64', os.version: '4.17.9-200.fc28.x86_64', java.version: '1.8.0_111'
Driver info: org.eclipse.che.selenium.core.SeleniumWebDriver
	at org.openqa.selenium.support.ui.WebDriverWait.timeoutException(WebDriverWait.java:80)
	at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:265)
	at org.eclipse.che.selenium.core.webdriver.SeleniumWebDriverHelper.waitValueContains(SeleniumWebDriverHelper.java:644)
	at org.eclipse.che.selenium.core.webdriver.SeleniumWebDriverHelper.waitValueContains(SeleniumWebDriverHelper.java:661)
	at org.eclipse.che.selenium.pageobject.git.GitHistory.waitContentIntoHistoryEditor(GitHistory.java:105)
	at org.eclipse.che.selenium.pageobject.git.Git.waitContentInHistoryEditor(Git.java:304)
	at org.eclipse.che.selenium.git.CheckoutReferenceTest.checkoutReferenceByHashCommit(CheckoutReferenceTest.java:166)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:696)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:882)
	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1189)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

2018-09-11 04:30:14,738[pool-2-thread-2]  [ERROR] [.e.c.s.c.i.SeleniumTestHandler 355]  - Test CSharpClassRenamingTest.checkRenaming failed. Error: Expected condition failed: 
expected:
'HelloWorld'
but was:
''
 (tried for 10 second(s) with 500 MILLISECONDS interval)
Build info: version: '3.0.1', revision: '1969d75', time: '2016-10-18 09:49:13 -0700'
System info: host: 'slave2.codenvycorp.com', ip: '127.0.0.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.10.0-862.11.6.el7.x86_64', java.version: '1.8.0_144'
Driver info: org.eclipse.che.selenium.core.SeleniumWebDriver

Many thanks to @tsmaeder for an idea and example of implementation.

What issues does this PR fix or reference?

#11149

[dmytro-ndp]

ci-test

[riuvshin]

ci-test build report:
Build details
Test report
selenium tests report data
docker image: eclipseche/che-server:11153
https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.

[dmytro-ndp]

ci-test-docker-single

[riuvshin]

ci-test build report:
Build details
Test report
selenium tests report data
docker image: eclipseche/che-server:11153
https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.