C-Macro-Collections/tests

Tests

• codecov - A stalled version for codecov;
• main - Unit tests for the main C Macro Collections library;
• sep/main.c, sep/sep.c and sep/sep.h - Tests separate header and source compilation;
• contains.c - Tests the contains function for all collections;
• foreach.c - Tests the ForEach macros for all collections;
• iterators.c - Tests all collection's iterators;
• types.c - Tests if all containers accept all possible C data types (struct, union, enum, pointers, function pointers)