Allows elapsedMS to show up in the docs (#3750)

Improve the accuracy of RETINA_PREFIX (#3759) ...

* Improve the accuracy of RETINA_PREFIX

Sometimes ，this PR could fix https://github.com/pixijs/pixi.js/issues/3755 .
Maybe this PR is better than https://github.com/pixijs/pixi.js/pull/3756.

* Update settings.js

different settings for vertex and fragment shader (#3753)

Fix precision setting change not being picked up (#3749)

Improve the logic about calculate vertices (#3746) ...

Reason:
* Do similar things in similar way :  compute left / top , then add width/height .
* A very very very very (...* 1000000) bit little performance improvement :  one `-` & one `*` become one `+`.
* fix some words in document.

User can decide whether auto-set the projection (#3612) ...

* User can decide whether  auto-set the projection

`bindShader` always  set the projection matrix  automatically . in most case ,  that's OK.

But When I create some new renderer of PIXI ,  sometimes it would make some problems.
e.g.
* shader no projectionMatrix
* shader need use a custom projectionMatrix (not  _activeRenderTarget's)
* shader use a cached array (don't want to call toArray every time)

So I add a new argument to `bindShader` , and the default value is true, so  it would break any current code of PIXI

.

* Update WebGLRenderer.js

CanvasTinter canvas size rounds up (#3620)

Fix doc: add missing type of parameter (#3737) ...

* Fix doc: add missing type of parameter

* Update Texture.js

* Update Texture.js

Allow option to make Application ticker the shared ticker (#3688) ...

* Default the Application ticker to be shared

* Default is to create own internal ticker

Add BaseTexture.from() & fix a bug of `Texture.from` (#3736) ...

* Add BaseTexture.from()

* Add BaseTexture.from().
* Support create BaseTexture from HTMLImageElement.
* Support  BaseTexture cache.

* Let `Texture.from(img)` support BaseTexture cache.

Fixed crash in WebGLState::push(). (#3652)

addChild/removeChild transform IDs were wrong (#3722) ...

* addChild/removeChild transform IDs were wrong

* better test

* uncomment expects

* also add removeChildren

* lint on tests

fixed lint warnings (#3726)

Merge branch 'master' into dev

filter slot #0 for textures (#3721)

minor optimisation of quadratic bezier curve calculation. (#3712)

Fast rect blendMode problem (#3707) ...

* fast rect blendMode. Tested.

* add webgl-only test
add test for rgb2hex
fix problem in rgb2hex

Fixed #3698 (Matrix constructor now takes parameters) (#3700) ...

* Fixed #3698 (Matrix constructor now takes parameters)

* Added JSDoc comments for matrix constructor

Add an easy way to clear RenderTexture (#3647) ...

* Add a easy way to clear RenderTexture

In current PIXI, clear a RenderTexture is complex : 
```
renderer.bindRenderTexture(myRenderTexture);
renderer.clear();
// restore the previous renderTexture
renderer.bindRenderTexture();
```
And bind renderTexture is a high-cost operation . We shouldn't call it for cleaning render texture.

So I  add this method.

relatived : https://github.com/pixijs/pixi.js/issues/3595

* Add `return this`

a wrong word (#3691) ...

when i translate the documentation into chinese,i find this strange word,so :)

Refactors the spritesheet, texture and bitmap font loaders (#3676) ...

* Refactors the spritesheet, texture and bitmap font loaders

* Fixes trailing space

* Addresses feedback in var caching and docs

* Adds unit test for Texture.fromLoader

* Adds new Spritesheet class

* Cleanup spritesheet destroy and imports

* Added baseTexture destroy to Spritesheet

Reworked cursor handling to expand cursor options. (#3331) ...

* Enhanced mixins, replaced cursor handling with more features.

* Cleanup and fixes to interactive classes.

Mouse over/out/move was not being handled properly, and didn't work as a
result.

* Fixed inversion of flag checking logic.

* Added tests for interaction events and cursors.

* Removed now unused variables

Variables were private and readonly, so removal should not be a problem.

* Fix #3662

Needed better tracking of if events should have default prevented.

initial commit for ultimate renderer dimensions solution (#3657)

Fix docs and export issue, Filter is a class

Typo

add nativeLines option for Graphics (#3328)

Dedupe BaseTexture dimension updating (#3680) ...

* dedupe update dimensions

* lint

Added legacy option to webGL renderer (#3630) ...

* Added legacy option to webGL renderer

Setting ```legacy``` to true now forces VertexArrayObjects and
MultiTexture Batching to be disabled. We also store the variable on the
renderer just incase we want to use it to force settings in anything
else.

also added a test

* remove WebGLTests as they don't work on server

* Added extra param to Application

* Adds WebGL test for legacy

* Better check for WebGL in tests

Better respecting of the scale mode (#3678)

Able to set the alpha on Text drop shadows (#3651)