Use the develop branch when building from source (until v0.12.0 is released)

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Admittedly, because I maintain Bloom's DEB, RPM, and Arch packages, I haven't paid much attention to Bloom's build process. For newcomers, building from source can involve quite a lot of pain.

I've spent some time improving and simplifying the build process. All of these changes are in the develop branch. If you've looking to build Bloom from source, it may be best to use that branch. Follow the instructions in the README.

There are too many changes for me to go through here, but here's the gist of it:

• The install rules are no longer coupled with packaging - meaning you can run cmake --install ./ freely, and have Bloom installed on your machine (as opposed to a release directory, for packaging).
• The distributed shared library binaries will not be installed when building Bloom from source - your own system libraries will be used. The distributed binaries will only be used for packaging.
• Warnings that were appearing in more recent compiler versions (G++ 11 & 12) have been addressed.

Finally, make sure you're using a fairly recent OS, with access to a package repository that hosts fairly recent packages. Bloom depends on some fairly recent libraries - you'll need to install these before you can build Bloom. If you're on some really old OS, where the packages are very outdated, you've going to have a hard time bringing in those dependencies.