Creating a paletted image along with other images broke it

I will tidy this up in the next few commits

Add linear equalise
Add image flip for southbound passes
Completly remove old falseclor in favour of a much simplier method

Change calibration to better suit constant gain
Add -Wextra to Makefile
Add link to model of the PLL
Max number of rows for the image is now increasible

Add a denoise filter
Fix temperature calibration
Tidy up some files
Improve MCIR

Improved commenting in dsp.c
Updated copyright notices
Code tidy up in some parts

Now RGB based instead of HSV based, this also includes a new RGBA compositing function which cleans up the code responsible false color significantly.

Color palettes have also been moved into 1 file instead of 2

This fixes the build.  It looks like the tree was forked during
some incomplete work :(

new dsp code
ngvi test