Include test module into project

[askhad-apishev]

all tests (test directory, test files such as maps or other, test instruction in Makefile) are now indicated in .gitignore file. test are important during coding. but tests should not be in production code in intra. so, if test are in .gitignore - all test changes will not be updated remotely.

[srgbl]

Test folder doesn't specified in gitignore file anymore. So we'll need to remove it from git manually before final git pushing.