Clarify function arguments

Renamed various function arguments for clarity, with minimal changes to functionality and interfaces.

Interface and functional changes:

• buildTestImage first argument (imageName) split into projectName and serviceName
• runTests first argument (imageName) split into projectNameandserviceName`
• buildAndPushContainerImage now builds from only the base docker-compose.yaml (no overrides) which should produce production images

Add getCommitMessage function

Git message added

Git message added

Set version in Helm chart dynamically

0.0.15

Set version in Helm chart

Fix Slack master notification and update version format

Merge pull request #16 from DEFRA/fix-version-format

Fixed Slack and version format

Shared library needs function to create GitHub release tagged with version number

Added function to shared library to create GitHub release tagged with version number.
https://eaflood.atlassian.net/browse/PSD-475

Added function to return SemVer or PR number

Added function to return SemVer or PR number
https://eaflood.atlassian.net/browse/PSD-473

Added function to get csproj version

Add function to extract version from .csproj (#10)
https://eaflood.atlassian.net/browse/PSD-472

• add getCSProjVersion function

• Update readme

Added Slack Build Failure Notifications

https://eaflood.atlassian.net/browse/PSD-430

Added Code Coverage Function

https://eaflood.atlassian.net/browse/PSD-458

Fix builds continuing after test failure

The docker-compose up has changed to a run so the correct exit code is returned, halting the pipeline if tests fail.