caprice32

Add more tests and benchmarks for prerender and render.

Only install diff & 7zip and run integrated tests on win64

Only install diff & 7zip and run integrated tests on win64

diffutil is used by e2e_test (at least). Let's see what uses 7zip

Use global variable privatization optimization which tells unblock compiler optimization for global variables by letting it know that they won't change while it's working with them.