Add basic block textures

- Remove the code that sent colors through uniform variables, instead
  send texture data
- Each vertex now has a texture coordinate
- struct texture is a easy way to represent textures, can be extended
  later
- Shaders updated to use textures

1 files changed, 0 insertions, 0 deletions

diff --git a/textures/grass.jpg b/textures/grass.jpg
new file mode 100644
index 0000000..6ee761a
--- /dev/null
+++ b/textures/grass.jpg