Class rename, composer add, phpUnit tests add

Rename the class from ReadEnvFile to DotEnv.
Add everything to a composer json file so it can be published to
composer repository.
Add phpUnit tests for system

test/.env

@@ -1,28 +0,0 @@
-# enviroment file
-SOMETHING=A
-OTHER="B IS B"
-Complex="A B \"D is F"
-# COMMENT
-HAS_SPACE= "ABC";
-FAILURE = ABC
-SIMPLEBOX= A B  C
-TITLE=1
-FOO=1.2
-SOME.TEST=Test Var
-SOME.LIVE=Live Var
-Test="A"
-TEST="B"
-TEST="D"
-LINE="ABC
-DEF"
-OTHERLINE="ABC
-AF\"ASFASDF
-MORESHIT"
-SUPERLINE=
-"asfasfasf"
-   __FOO_BAR_1 = b
-	__FOOFOO	=	f     
-123123=number
-EMPTY=
-= flase
-asfasdf

test/.env

@@ -0,0 +1 @@
+phpUnitTests/dotenv/test.env