Changes

Added allin one shader stripped for graph.

tegra2 hunting, single pass, no discard, lowp,
and removed uneeded variables

tegra2: split fragment shaders into two (a - 1st pass, b - 2nd pass) ; disabled discard

- 1st pass (a) and 2nd pass (b), split at branch.
- all include are on one level.
- disabled discard, as it seems to be problematic

Todo:
 - verify discard / pass-split on tegra2
 - refect second pass usage (b) in implementation

Fix intendation

Fixed shader entry files a/b

Graph: Reflect shader name change in impl. TODO: Use/switch to 2nd pass shader

tegra: refine disabled discard, ie keep logic/math intact. Rami ?

Graph Shader Simplification, 'a'/'b' redefined; GraphUI 2-pass demo;

Graph Shader Simplification

  - remove enable factor and 2nd 'discard' branch

  - use build-in 'max'/'clamp' functions, supposed to be faster

Graph Shader 'a'/'b' redefined

  - 'a' is 1-pass shader only

  - 'b' is 2-pass incl. (1st pass + 2nd pass)
    - Works well on ARM Mali-400 MP (Galaxy S2).
    - Doesn't work on NV tegra2 (P1202: Texture's gl states do not match with shader's),
      however 2-pass on mobile seems to be overkill for now.
      We may create a workaround (switch shader ..).

GraphUI 2-pass demo;
  - Propagate renderModes and texSize to UIShape's render(..)
  - TODO: Remove GL dependency in UIShape, maybe use a callback or visitor model
  - Adding GarpUI 2-pass launcher (Android and Standalone)

adb scripts: pass through '$*' for device naming, ie '-s device00:5555' or '-s 390adf8383'