Makefile addition

[cb-alish]

Adds a Makefile to automate version updates across relevant files and provide commands to increment major, minor, and patch versions.

[snyk-io]

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[cb-srinaths]

Let's also have a format command here which can be run after the sdk-generator does it's work.

[cb-srinaths]

Same for all other languages. If we don't know which formatter we will use immediately, let's just do a @echo Formatter not configured for now.