V3

[dmnsgn]

Changes:

• [x] convert require to import and module.exports to exports
• [x] docs: convert example to esm
• [x] docs: fix examples
• [x] docs: aggregate instancing/batching/shadows example
• [x] fix: handle buffer.length for ArrayBuffer
• [x] fix: debug not working in esm
• [x] fix(webgl2): use gl.MAX_COLOR_ATTACHMENTS instead of "MAX_COLOR_ATTACHMENTS"
• [x] fix(webgl2): handle EXT_disjoint_timer_query_webgl2 along EXT_disjoint_timer_query
• [x] feat: add width/height getters
• [x] feat: set type to webgl2 #114

Closes #118 Closes #85 Closes #116 Closes #91 Closes #66 Closes #38 Closes #28 Closes #126 Closes #129 Closes #120 Closes #122 Closes #129 Closes #131 Closes #132