Add CLA commit specific check to cla check workflow

[abose]

• Add check to cla that validates that every commit in the pull request belongs to a user that has signed the CLA.

integrate the check to the following repos:

CLA repo is: https://github.com/brackets-cont/contributor-license-agreement/

• https://github.com/brackets-cont/brackets-cont.github.io
  • Verify that CLA checks and commenting errors work with mock pull request from test user
• https://github.com/brackets-cont/brackets
  • Verify that CLA checks and commenting errors work with mock pull request from test user
• https://github.com/brackets-cont/brackets-updates
  • Verify that CLA checks and commenting errors work with mock pull request from test user
• https://github.com/brackets-cont/brackets-shell
  • Verify that CLA checks and commenting errors work with mock pull request from test user

[psdhanesh7]

• Add check to cla that validates that every commit in the pull request belongs to a user that has signed the CLA.

integrate the check to the following repos:

CLA repo is: https://github.com/brackets-cont/contributor-license-agreement/

• https://github.com/brackets-cont/brackets-cont.github.io

  • Verify that CLA checks and commenting errors work with mock pull request from test user

• https://github.com/brackets-cont/brackets

  • Verify that CLA checks and commenting errors work with mock pull request from test user

• https://github.com/brackets-cont/brackets-updates

  • Verify that CLA checks and commenting errors work with mock pull request from test user

• https://github.com/brackets-cont/brackets-shell

  • Verify that CLA checks and commenting errors work with mock pull request from test user

• Task 1 completed in pull request Add commit specific cla checks. brackets-cont.github.io#27 (comment). Testing done in pull request Test cla checks brackets-cont.github.io#28 (comment).

• Task 2 completed in pull request Add commit specific cla checks brackets#186 (comment). Testing done in pull request Test commit specific cla checks brackets#192 (comment) and verified.

• Task 3 completed in pull request Add commit specific cla checks brackets-updates#4 (comment). Testing done in pull request Test commit specific cla checks brackets-updates#5 (comment) and verified.

• Task 4 completed in pull request Add commit specific cla checks brackets-shell#6 (comment). Testing done and verified in pull request Test commit specific cla checks brackets-shell#8 (comment).

All tasks completed.