Enable Meson option to build parser and test cases

Meson script to build parser and test cases.
It will replace the use of auto tools to
build the code.

- Steps to build
In the directory, where you have meson.build file
execute the following commands.

meson -Doption=value builddir
<This will create a builddir>

ninja -C builddir
<Creates EXE>

ninja -C builddir test
<Executes unit tests>

Change-Id: Ic351daf2c135b06e1b04048a4a6ad8d9897fba54
Signed-off-by: Sunny Srivastava <sunnsr25@in.ibm.com>
diff --git a/.gitignore b/.gitignore
index 71665e0..4ab572b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,4 @@
 store_test
 *.log
 *.trs
+builddir