WIP: Retreived the unit tests (formerly test cases)

Some of these still work, others have just been dummied out for now.

Also added tests for console colors tool, and tweaked it to work
properly.

tests/units/test_array.c

@@ -0,0 +1,52 @@
+#include "toy_array.h"
+#include "toy_console_colors.h"
+
+#include <stdio.h>
+
+int test_array(void) {
+	//test allocation and free
+	{
+		Toy_Array* array = Toy_resizeArray(NULL, TOY_ARRAY_INITIAL_CAPACITY);
+		array = Toy_resizeArray(array, 0);
+	}
+
+	//test initial data
+	{
+		Toy_Array* array = Toy_resizeArray(NULL, TOY_ARRAY_INITIAL_CAPACITY);
+
+		//check you can access the memory
+		array->data[1] = TOY_VALUE_FROM_INTEGER(42);
+
+		array = Toy_resizeArray(array, 0);
+	}
+
+	//test multiple arrays (no overlaps or conflicts)
+	{
+		Toy_Array* array1 = Toy_resizeArray(NULL, TOY_ARRAY_INITIAL_CAPACITY);
+		Toy_Array* array2 = Toy_resizeArray(NULL, TOY_ARRAY_INITIAL_CAPACITY);
+
+		array1->data[1] = TOY_VALUE_FROM_INTEGER(42);
+		array2->data[1] = TOY_VALUE_FROM_INTEGER(42);
+
+		Toy_resizeArray(array1, 0);
+		Toy_resizeArray(array2, 0);
+	}
+
+	return 0;
+}
+
+int main(void) {
+	//run each test set, returning the total errors given
+	int total = 0, res = 0;
+
+	{
+		res = test_array();
+		total += res;
+
+		if (res == 0) {
+			printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
+		}
+	}
+
+	return total;
+}