update imgui to v1.62 tag

fix tsconfig file mode

remove missing files

add fetch polyfill for node example

add ImFontAtlas::AddFontFromMemoryTTF

check for null

target ES2016

init imgui_impl using WebGL context

add clipboard bindings

add ImGuiIO::OptMacOSXBehaviors binding

fix SetCursorPos; add Set methods to ImVec2 and ImVec4

update to Emscripten 1.38.0

update npm dependencies

update to Emscripten 1.37.38

update npm dependencies

update imgui to v1.60 tag

make @types dependencies

remove github ribbon

switch to pointer events

update @types/node

remove devicePixelRatio mod from mousemove

use scroll[Width/Height]; add viewport meta tag; add basic touch controls

fix tsconfig

update TypeScript 2.8

account for devicePixelRatio in example

update to Emscripten 1.37.36

update imgui

call native Emscripten class constructors

match another gamepad id format

initialize from Partial<Module>