add hello world and meson

meson.build

@@ -0,0 +1,13 @@
+project('cg1', 'c')
+
+src_files = [
+	'./src/main.c',
+]
+
+executable('cg1',
+	src_files,
+	dependencies: [
+		dependency('GL'),
+		dependency('glfw3')
+	]
+)

src/main.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main(int argc, char const *argv[])
+{
+	printf("Hello World!\n");
+	return 0;
+}