Split main.c into separate files and set up directory structure

Makefile

@@ -0,0 +1,14 @@
+EX=devil1test
+CC=gcc
+CFLAGS= -I"include"
+
+all: main
+
+main: devil1pld.o
+	$(CC) $^ test/main.c $(CFLAGS) -o $(EX) 
+
+devil1pld.o: src/devil1pld.c
+	$(CC) -c $^ $(CFLAGS)
+
+clean:
+	rm *.o $(EX)