Problem: missing support for CMake (fix #265)

[damoncro]

Solution:

• Add basic cmake support and test cmake in CI
• Move the libraries and bindings to sdk
• Integrate x86_64 and amd64 in Makefile
• Add linux_build.yml
• Use rpath for mac dynamic library
• Use so file for linux dynamic library
• Simplify the process of build example by one make

👮🏻👮🏻👮🏻 !!!! REFERENCE THE PROBLEM YOUR ARE SOLVING IN THE PR TITLE AND DESCRIBE YOUR SOLUTION HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻

PR Checklist:

• Have you read the CONTRIBUTING.md?
• Does your PR follow the C4 patch requirements?
• Have you rebased your work on top of the latest main?
• Have you checked your code compiles? (cargo build)
• Have you included tests for any non-trivial functionality?
• Have you checked your code passes the unit tests? (cargo test)
• Have you checked your code formatting is correct? (cargo fmt -- --check --color=auto)
• Have you checked your basic code style is fine? (cargo clippy)
• If you added any dependencies, have you checked they do not contain any known vulnerabilities? (cargo audit)
• If your changes affect public APIs, does your PR follow the C4 evolution of public contracts?
• If your code changes public APIs, have you incremented the crate version numbers and documented your changes in the CHANGELOG.md?
• If you are contributing for the first time, please read the agreement in CONTRIBUTING.md now and add a comment to this pull request stating that your PR is in accordance with the Developer's Certificate of Origin.

Thank you for your code, it's appreciated! :)

[damoncro]

I am still working on cmake in windows.

[tomtau]

should that helper.py be removed if this is now done via cmake?

[damoncro]

It is difficult at this moment, helper.py carries some string replacement works...

[damoncro]

This PR adds basic cmake support, considering that the users already downloaded or built the bindings and binaries, and would like to integrate cmake into their projects.

Created a follow up issue here to replace helper.py: #462

[tomtau]

btw https://stackoverflow.com/questions/62648369/best-way-to-call-cargo-from-cmake

[tomtau]

https://github.com/corrosion-rs/corrosion

[tomtau]

not a cmake expert, so not sure if this follows all the modern idioms: https://gist.github.com/mbinna/c61dbb39bca0e4fb7d1f73b0d66a4fd1 https://cliutils.gitlab.io/modern-cmake/ but I guess it could be potentially improved in follow up PRs

[damoncro]

Cool references, I will check and improve in another PR, for example for #462 issue.