'=' operator amelioration
'=' operator definition
Test of '=' operator
'=' operator on (char)
Merge branch 'master' of https://github.com/String1415BIM/TP_String_1415

Conflicts:
	String.h
	test_main.cpp
'=' operator on char
Merge branch 'master' of https://github.com/String1415BIM/TP_String_1415