Make project buildable with subproject

Subproject dependencies make this project easier to build and maintain.

Change-Id: I26c2221d7d7984d38d782b2abc3115d227c60cfe
Signed-off-by: Ed Tanous <ed@tanous.net>
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6f4a302
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+/build*
+
+### Meson ###
+# subproject directories
+/subprojects/*
+!/subprojects/*.wrap
+!/subprojects/packagefiles