update pom.xml to release version 5.0.2

update pom.xml to release version 5.0.2 in all sub-modules

KYLIN-5973 fix streaming function

[maven-release-plugin] copy for tag kylin-5.0.0

[maven-release-plugin] copy for tag kylin-4.0.5

[maven-release-plugin] copy for tag kylin-4.0.4

Verify run Kylin in IDEA guide

- dev-support/contributor/README.md is fully rewrote and tested on my laptop based this commit

[maven-release-plugin] copy for tag kylin-5.0.0-beta

[maven-release-plugin] copy for tag kylin-5.0.0-alpha

[maven-release-plugin] copy for tag kylin-4.0.3

[maven-release-plugin] copy for tag kylin-4.0.2