Add build scripts and main.c

compile

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+CC=clang
+CFLAGS="-g -Wall"
+CXXFLAGS="-g -Wall"
+SRC="src/*.c"
+OUT=main
+
+(set -x ; $CC $CFLAGS $SRC -o $OUT)