Maid filesystem tests

Request covering MAID-116 through MAID-120. The tests for MAID-116 FileSystemTest.FUNC_CreateAndBuildMinimalCXXProject, MAID-117 FileSystemTest.FUNC_RemountDrive and MAID-119 FileSystemTest.BEH_WriteUtf8FileAndEdit have been disabled, and critical task MAID-140 has been created to address this. The commit related to this request includes the tasks MAID-118 and MAID-120 where no action was taken, since previous failing tests and/or drive crashes appear to be contributing their failure, on Windows at least.