As a WT developer, I want to be able to compile the wiredtiger library target (libwiredtiger[.a,.so]) using CMake.

Definition of done:

• Can invoke CMake in the wiredtiger repository. This should be able to successfully configure/generate a Ninja build on:
  • Linux/Darwin environments
  • For supported architectures: X86_64
  • For supported compilers: GCC & Clang
• Supports static and shared library builds
• Supports the different extension configurations (e.g  compressors)
• Working ninja build that successfully creates a libwiredtiger[.a,.so] file
• Working libwiredtiger[.a,.so] file e.g. can link against examples and runs as expected (C, CPP and API tests coming in later task)
• Support for installation target (e.g 'make install' equivalent)
• Initial documentation on how to build library with CMake (e.g. README)
• Autoconf/Libtool build still works as expected (should co-exist in tree)

How to do?

Implement a series of CMake scripts that can configure/build/compile the wiredtiger library for our supported POSIX variants (initially POSIX; with Window support coming in a later task).

Sample CMake spike was introduced in WT-6535 (for inspiration).