Started PHP port of Java Tennis game
added .gitignore
added TennisGame1 class
Added TennisGame2 class
Added TennisTest.php (empty for now)
Added TennisGame3 class
Added TennisGame2 class
Removed phpStorm comments at beginning of files
Merge pull request #1 from ovidiu-geaboc/phpTennis

Ported all files except TennisTest.java .