feature: add configuration for build docker image in server module

[helloworlde]

Ⅰ. Describe what this PR did

Add configuration for build Docker image in server module.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

This PR can't add test cases in code.

Ⅳ. Describe how to verify it

1. Add REGISTRY_USERNAME and REGISTRY_PASSWORD environment which docker account and password.
2. Execute mvn clean package -P image and then will push latest tag image in your docker hub.

Ⅴ. Special notes for reviews

• Need to add two environment parameter in Travis: REGISTRY_USERNAME and REGISTRY_PASSWORD
• The namespace seata.io need to check if is belong to us, or need to change others.
• Add one profile for docker image named image
• There has two scene to build image:
  • Use image profile, will build and upload the latest tag image.
  • Use release profile, will build and upload the latest and ${project.version} tag images.

And there has a very important thing is that we need change path of registry.conf and file.conf, now if we want mount configuration volume to container, we need add not only registry.conf and file.conf, but also all files under resources. So move the two files to another folder maybe is a good choice

[codecov-io]

Codecov Report

Merging #1885 into develop will decrease coverage by 0.08%.
The diff coverage is 21.21%.

@@              Coverage Diff              @@
##             develop    #1885      +/-   ##
=============================================
- Coverage      55.27%   55.18%   -0.09%     
- Complexity      2401     2404       +3     
=============================================
  Files            428      429       +1     
  Lines          14219    14246      +27     
  Branches        1664     1668       +4     
=============================================
+ Hits            7859     7862       +3     
- Misses          5658     5679      +21     
- Partials         702      705       +3

Impacted Files	Coverage Δ	Complexity Δ
...rc/main/java/io/seata/common/util/StringUtils.java	26.19% <0%> (-1.31%)	16 <0> (ø)
...rc/main/java/io/seata/common/util/NumberUtils.java	0% <0%> (ø)	0 <0> (?)
...src/main/java/io/seata/server/ParameterParser.java	46.8% <30.43%> (-9.86%)	11 <6> (+3)
...server/store/file/FileTransactionStoreManager.java	56.5% <0%> (-0.96%)	29% <0%> (ø)
...very/registry/zk/ZookeeperRegisterServiceImpl.java	64.56% <0%> (+0.78%)	25% <0%> (ø)	⬇️

[slievrly]

@helloworlde How to control the account permissions of docker.io?

[slievrly]

Has been discussed with @helloworlde , use profile for configuration isolation, use travis env environment variable to control account.

[slievrly]

LGTM

[xingfudeshi]

LGTM.