Add Geometries (replaces Quads).

A Geometry is a collection of vertices describing a non self-intersecting
(simple) polygon. In addition to screen coordinates, the vertices have
attributes for texture coordinates (s,t) and color (r,g,b,a).

It can be used as a quad, to display distorted images, or anything in between.

Added:
^^^^^^

-- geometry from table, where table has the format:
-- info = {
-- {x,y, s,t, [r = 255, g = 255, b = 255, a = 255]}
-- {x,y, s,t, [r = 255, g = 255, b = 255, a = 255]}
-- ...
-- }
geom = love.graphics.newGeometry(info)

-- convenience wrapper for quads (same as before)
geom = love.graphics.newQuad(x,y, w,h, sw,sh)

-- retrieve vertex i (1-indexed)
x,y,s,t,r,g,b,a = geom:getVertex(i)

-- set vertex i (1-indexed)
geom:setVertex(i, x,y, s,t, [r,g,b,a])

-- flip geometry
geom:flip(x, y)


Renamed:
^^^^^^^^

love.graphics.drawq() -> love.graphics.drawg()


Removed:
^^^^^^^^

quad:setViewport()
quad:getViewport()

src/modules/graphics/opengl/wrap_Graphics.h

@@ -24,7 +24,7 @@
 // LOVE
 #include "wrap_Font.h"
 #include "wrap_Image.h"
-#include "wrap_Quad.h"
+#include "wrap_Geometry.h"
 #include "wrap_SpriteBatch.h"
 #include "wrap_ParticleSystem.h"
 #include "wrap_Canvas.h"
@@ -59,7 +59,7 @@ int w_setStencil(lua_State *L);
 int w_setAlphaTest(lua_State *L);
 int w_getAlphaTest(lua_State *L);
 int w_newImage(lua_State *L);
-int w_newQuad(lua_State *L);
+int w_newGeometry(lua_State *L);
 int w_newQuad(lua_State *L);
 int w_newFont(lua_State *L);
 int w_newImageFont(lua_State *L);
@@ -100,7 +100,7 @@ int w_setShader(lua_State *L);
 int w_getShader(lua_State *L);
 int w_isSupported(lua_State *L);
 int w_draw(lua_State *L);
-int w_drawq(lua_State *L);
+int w_drawg(lua_State *L);
 int w_print(lua_State *L);
 int w_printf(lua_State *L);
 int w_point(lua_State *L);