Port bash scripts to Kotlin

[adamfilipow92]

Author the user story for this feature

As a flank developer, I want to use have Kotlin scripts instead of bash scripts so I can easily write new, understand existing and easily use it on all platforms.

Is your feature request related to a problem? Please describe.

We had a problem with port update_flank.sh to windows bat script, moving them to Kotlin should be easiest and more readable.

Describe the solution you'd like
Port bash scripts to kotlin scripts

• ./test_runner/bash/update_flank.sh

• ./test_runner/src/test/kotlin/ftl/fixtures/tmp/gohello/build.sh (this is same as ./test_projects/gohello/build.sh)

• ./flank-scripts/bash/buildFlankScripts.sh

• ./test_runner/src/main/resources/binaries/update.sh

• ./test_projects/ops.sh (many functions)

• ./test_projects/gohello/build.sh (with possibility to change gohello path)

• ./test_projects/android/ops.sh (many functions)

• ./test_projects/android/bash/test_filters.sh.

• ./test_projects/ios/EarlGreyExample/ops.sh (many functions)

• ./test_projects/ios/EarlGreyExample/build_example.sh

• ./test_projects/ios/EarlGreyExample/universal_framework.sh

• ./test_projects/ios/EarlGreyExample/run_ftl_local.sh

• ./test_projects/ios/EarlGreyExample/build_ftl.sh

• ./firebase_apis/generate_java_client.sh

• ./firebase_apis/update_api_json.sh

[Sloox]

Are we going to include all bashScripts?
We could make use of : https://www.kotlinresources.com/library/kscript/
Its already used in the Github action for scripting. Works very well.

[bootstraponline]

yeah let's fully move away from Bash in favor of Kotlin. I think this will set the project up for success going forward.