further cleanup and organization

Makefile

@@ -7,13 +7,14 @@ CFLAGS = -Wall -Wextra -I$(INCLUDE) -ggdb
 BUILD_DIR := build
 TEST_BUILD_DIR := $(BUILD_DIR)/test
 TEST_BUILD_FILES := $(TEST_BUILD_DIR)/test.o \
+					$(TEST_BUILD_DIR)/array.o \
 
 INCLUDE_INSTALL_PATH := /usr/local/include/LTypes
 
 all: test
 
 test: $(TEST_BUILD_FILES)
-	$(CC) $(CFLAGS) -o $(TEST_BUILD_DIR)/test $(TEST_BUILD_FILES)
+	$(CC) $(CFLAGS) -I./test/include -o $(TEST_BUILD_DIR)/test $(TEST_BUILD_FILES)
 	@echo ""
 	$(TEST_BUILD_DIR)/test