* Adding sources of the Implib.so project
* Run C unit tests and API tests with the shim library
* Reuse compilation of C test binaries with and without shim library
* Resolve client library path from an environment variable
* Refactoring: Reusable module for downloading FDB binaries
* Testing client shim library with current version and last release version
* Tests for specifying client library over an environment variable
* Enable C shim library tests on ARM
* Restore the original path for including fdb_api.hpp