LPS-83379 Adding tensorflow library to portal

See spotify/scio#1137 (comment)

lib/.gitignore

@@ -234,6 +234,9 @@
 /portal/spring-orm.jar
 /portal/spring-oxm.jar
 /portal/spring-tx.jar
+/portal/tensorflow.jar
+/portal/libtensorflow.jar
+/portal/libtensorflow_jni.jar
 /portal/spring-web.jar
 /portal/spring-webmvc.jar
 /portal/spring-webmvc-portlet.jar
@@ -269,4 +272,4 @@
 /portal/xstream.jar
 /portal/xuggle-xuggler-noarch.jar
 /portal/xz.jar
-/portal/yui-compressor.jar
+/portal/yui-compressor.jar

lib/portal/dependencies.properties

@@ -106,6 +106,8 @@ juh=org.openoffice:juh:2.3.1
 juniversalchardet=com.googlecode.juniversalchardet:juniversalchardet:1.0.3
 jurt=org.openoffice:jurt:2.3.1
 kxml2=net.sf.kxml:kxml2:2.3.0
+libtensorflow=org.tensorflow:libtensorflow:1.8.0
+libtensorflow_jni=org.tensorflow:libtensorflow_jni:1.8.0
 liferay-icu4j=com.liferay:com.ibm.icu4j:54.1.1.LIFERAY-PATCHED-2
 log4j-extras=log4j:apache-log4j-extras:1.2.17
 log4j=log4j:log4j:1.2.17
@@ -164,6 +166,7 @@ struts-extras=org.apache.struts:struts-extras:1.3.10
 struts-taglib=org.apache.struts:struts-taglib:1.3.10
 struts-tiles=org.apache.struts:struts-tiles:1.3.10
 tagsoup=org.ccil.cowan.tagsoup:tagsoup:1.2.1
+tensorflow=org.tensorflow:tensorflow:1.8.0
 tika-core=org.apache.tika:tika-core:1.14
 tika-parsers=org.apache.tika:tika-parsers:1.14
 tomcat-jdbc=org.apache.tomcat:tomcat-jdbc:9.0.6

modules/core/portal-bootstrap/system.packages.extra.bnd

@@ -337,6 +337,8 @@ Provide-Capability:\
 	@../../../lib/portal/jodd-servlet.jar,\
 	@../../../lib/portal/jodd-upload.jar,\
 	@../../../lib/portal/json-java.jar,\
+	@../../../lib/portal/libtensorflow.jar,\
+	@../../../lib/portal/libtensorflow_jni.jar,\
 	@../../../lib/portal/liferay-icu4j.jar,\
 	@../../../lib/portal/log4j-extras.jar,\
 	@../../../lib/portal/log4j.jar,\
@@ -361,6 +363,7 @@ Provide-Capability:\
 	@../../../lib/portal/struts-extras.jar,\
 	@../../../lib/portal/struts-taglib.jar,\
 	@../../../lib/portal/struts-tiles.jar,\
+	@../../../lib/portal/tensorflow.jar,\
 	@../../../lib/portal/tika-core.jar,\
 	@../../../lib/portal/tika-parsers.jar,\
 	@../../../lib/portal/xalan.jar,\