included support of java LTS with maven

[nitishkumar71]

Signed-off-by: Nitishkumar Singh [email protected]

Included JAVA LTS template using maven build tool

Description

Added a new Java LTS template which will build openfaas function using maven as the build and test tool

Motivation and Context

• I have raised an issue to propose this change (required)

Which issue(s) this PR fixes

Fixes #237
Fixes #215

How Has This Been Tested?

Please Review ci build

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Version change (see: Impact to existing users)

Impact to existing users

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s
• I have added tests to cover my changes.
• All new and existing tests passed.