FeedSim build scripts improvements

[lukalt]

The suggested changes improve the speed and integrity of the FeedSim installation on aarch64 CentOS:

• Use precompiled cmake instead of building it on the fly, which takes several minutes
• Fix all other dependencies being installed to fast_float folder
• Validate checksum for third-party dependencies that are downloaded during installation
• Correctly specify CMake dependencies for mvfst and fbthrift. Otherwise parallel builds fail
• Build feedsim in parallel, gives great speedup when building ICacheBuster
• Build boost in parallel

Open questions:

• fast_float is installed but never used by FeedSim or its dependencies. Can it safely be removed?

[excelle08]

I remember fast_float is a dependency of fbthrift so we can't remove it - unless you've validated that it's not used by fbthrift when building on aarch64

[meta-codesync]

@ahmadelyoussef has imported this pull request. If you are a Meta employee, you can view this in D87904059.

[lukalt]

I remember fast_float is a dependency of fbthrift so we can't remove it - unless you've validated that it's not used by fbthrift when building on aarch64

Thanks. Just confirmed that fast_float is indeed required by folly (see https://github.com/facebook/fbthrift/blob/be70399cc5f6371a8b9c74a6647d280f20d2e1ae/build/fbcode_builder/manifests/folly#L23).

[lukalt]

@excelle08 @ahmadelyoussef I wanted to also apply these changes to the Ubuntu install script and realized that all the install scripts are mostly redundant so I merged them into a single install script for both architectures and both Linux distributions