mesa; add get-extra-pick-list.sh script into bin/
mesa; add get-extra-pick-list.sh script into bin/

This is a very rudimentary script that checks if any of the applied
cherry-picks have been referenced (fixed?) by another patch. With the
latter either missing the stable tag or hasn't yet been picked.

Cc: "11.1 11.2" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>
Signed-off-by: Emil Velikov <4c996f2f093ddd0585a556460b4cc3ba555546ef@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler