Read the image in a separate thread and ensure each strip is read in its own thread (#1)

Reviewed-on: #1
Co-authored-by: Abdelrahman <said.abdelrahman89@gmail.com>
Co-committed-by: Abdelrahman <said.abdelrahman89@gmail.com>

compile

@@ -9,6 +9,7 @@ INCLUDES="\
 "
 LIBS="\
 	-lm \
+	-pthread \
 	$(pkg-config --libs sdl2) \
 "
 SRC="\