[Python] Kandinsky line()

[RedGl0w]

Rebase of #1327
#1327 (comment) is partially patched : the line which doesn't look like a line is due to #1502. You can still compile by adding

SFLAGS += -DEPSILON_SDL_SCREEN_ONLY=1

in ./Makefile to avoid the non straight line

• Add the function in toolbox

[NumWorksBot]

	.text.external	.rodata.external	Total
Base	634 64 bytes	231 583 bytes	877 323 bytes
Head	634 144 bytes	231 615 bytes	877 435 bytes
	+ 80 bytes	+ 32 bytes	+ 112 bytes
	+ 0 %	+ 0 %	+ 0 %