New formula to calculate drawn map sizes, now every FeatureSize leads to an unique size
It works by using 4 hardcoded map sizes and the rest is simply interpolated.
Size 1: 1024×512
Size 6: 2048×1024
Size 12: 4096×2048 (default, compatible with pre-1.0.0)
Size 25: 8192×4096
Lua scripts for engine testing. These scripts are the same as other Lua scripts
in Hedgewars, but you ought to call `EndLuaTest(TEST_SUCCESSFUL)` or
`EndLuaTest(TEST_FAILED)` when the test is completed.