we need more dots, MORE DOTS!
renamed init script to ant-zsh.zsh
adding zshrc template and Makefile installation + test target

targets:
- submodule: init and update submodules (antigen)
- install: installs default zshrc if it does not exist
- test: runs some basic setup tests to check if everything is ok
adding Makefile targets for default zshrc and zshenv setup

lazy way:
$ make && make install && make test