intel/tools: Add unit tests for assembler

v1: Pass executable object from meson to test(Dylan Baker)
v2: Ignore generated output files from git status(Matt Turner)

Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
diff --git a/.gitignore b/.gitignore
index a8917c2..825ad5f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.pyc
 *.pyo
+*.out
 build