tweak weapon params and improve weapon changing

move weapons definition out to Weapons.cc

code cleanup

Madon kuvia

start using CL_ResourceManager, change most draw methods to take a Graphics*, implment even better input handling, and draw weapon names

A doxygen configuration that makes something that looks like a basix doxygen documentation. Might need some tuning. Script not tested but should work on
Computing Centre computers.

Rope length changing possible

better input handling

Rope works

Rope has forces

handle errors a bit more gracefully in NetworkTCP

projectiles remove ground when expiring -> fixed digging

Rope can be drawn.

fixed logger, and network projectiles should work reasonably well now

basic network-projectiles

reorganize PhysicsObject/Player/Projectile lists so that PhysicsObject doesn't need to know about its subclasses anymore, and PhysicsWorld doesn't need to know about GameState

reorganize the weapons code and input handling code

use Player static vars for texture loading, and load from the PROJECT_DATA_DIR path

fixed walkingspeed and improved drawing

add static Engine::graphicsEnabled function and disable player graphics loading when false

and yet better image drawing

a bit better image_drawing

image is working.. well.. run it from build/src folder.

Liero-kuvat lis?tty.

some stuff to Weapon and shoot

Weapon.cc&hh

some minor fixes, shots now explode in collisionpoint

1 todo comment to line 220

sneak in some ugly ugly ugly Multiple Inheritance that hopefully nobody ever notices

Digging now uses projectiles.