Merge branch 'dev'
added Fbo,Texture,TextureFormat, fixes & cosmetics
seperated context, cosmetics
fixed draw func stack, cosmetics
cleanup pseudo stacks, moved geom gen to primitive util, cosmetics
fixed shared resize factor 'mutables'
cleanup ctx.roundRect
added ctx.arc, fixing draw stacs, cosmetics
moving polyline gen to polyline util
added program attributesToBind, bind/unbind texture, typo fixes, cleanup
fix stack state, bezier to BezierUtil
added OES_texture_float test, image init, fbo bind/unbind, Warnings, enums
adding drawFunc batching..., added ImageState, drawfunc state stacks, cosmetics
added rectSet fll cases
cleanup Float32/Uint16Mutable, added tests, adding circleset
added test subarray negative offset, src length overflow
added alpha
added writePixels/readPixlels fbo/tex, misc
cleanup
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