refactor(sdk): rename sdk package to api-client

Description

As a developer I want to be able to quickly scan the packages available in the git repo so that I can get a better understanding of the architecture in a shorter time.

Currently we have a package named cactus-sdk which is probably ambiguous with the project itself which we sometimes refer to as an SDK of SDKs. That ambiguity could cause rational minds to question our terminology (yet again) since if the whole project is the SDK then why do we have 10+ packages and only one of them called SDK. Based on all this that we should rename the package from @hyperledger/cactus-sdk to @hyperledger/cactus-api-client which much better describes (narrower scope) what that package actually does.

Acceptance Criteria

1. In the package.json file, the properties: name, main, browser, browserMinified, mainMinified properties are all updated
2. The references in all the other packages are also updated to import the new package instead of the old one (e.g. project must compile without issues
3. Documentation is updated where necessary (the readme.md file of the package needs a looksie for sure)

cc: @RafaelAPB @sfuji822 @jonathan-m-hamilton @takeutak

[petermetz]

@petermetz I have renamed the package and updated the required documentation. Raised a PR #314 for the same. Please review it. Thanks.

Great! Thank you so much @yash2189

[petermetz]

Thanks @petermetz yes I do not have much experience with typescript , Nodejs , lerna. I’ll surely visit the resources provided.

No worries @yash2189 another resource I can recommend is the local documentation in the CONTRIBUTING.md file and the BUILD.md file in this repo’s root folder. Plenty of useful explanation in both of those if you are a new to some concepts. It will also help you ensure that if you do submit a pull request it will be one that is easier to review/accept/merge. Thank you in advance!