Enable consistent-return rule

[willeastcott]

This would address these issues in the engine codebase:

C:\dev\enginelgtm\rollup.config.js
  35:13  error  Method 'transform' expected no return value  consistent-return
  83:13  error  Method 'transform' expected no return value  consistent-return

C:\dev\enginelgtm\src\anim\controller\anim-controller.js
  487:9  error  Method 'removeNodeAnimations' expected no return value  consistent-return

C:\dev\enginelgtm\src\anim\controller\anim-state.js
  57:5  error  Expected to return a value at the end of method '_createTree'  consistent-return

C:\dev\enginelgtm\src\framework\application.js
  1423:9  error  Method 'resizeCanvas' expected no return value  consistent-return

C:\dev\enginelgtm\src\framework\components\anim\component.js
  589:5  error  Expected to return a value at the end of method 'getParameterValue'  consistent-return

C:\dev\enginelgtm\src\framework\components\collision\system.js
  416:13  error  Method 'createPhysicalShape' expected no return value  consistent-return

C:\dev\enginelgtm\src\framework\components\element\component.js
  872:5  error  Expected to return a value at the end of method '_setPosition'  consistent-return
  911:5  error  Expected to return a value at the end of method '_sync'         consistent-return

C:\dev\enginelgtm\src\framework\components\script-legacy\component.js
  12:5  error  Expected to return a value at the end of method 'send'  consistent-return

C:\dev\enginelgtm\src\framework\components\scroll-view\component.js
  438:5  error  Expected to return a value at the end of method '_getScrollingEnabled'     consistent-return
  448:5  error  Expected to return a value at the end of method '_getScrollbarVisibility'  consistent-return

C:\dev\enginelgtm\src\framework\components\sound\slot.js
  146:9  error  Method 'play' expected no return value  consistent-return

C:\dev\enginelgtm\src\graphics\program-lib\programs\standard.js
  91:22  error  Expected to return a value at the end of method '_correctChannel'  consistent-return

C:\dev\enginelgtm\src\graphics\reproject-texture.js
  39:40  error  Expected to return a value at the end of arrow function  consistent-return

C:\dev\enginelgtm\src\graphics\texture.js
  1012:9  error  Method 'getDds' expected no return value  consistent-return

C:\dev\enginelgtm\src\resources\basis-worker.js
   60:63  error  Expected to return a value at the end of arrow function  consistent-return
  159:61  error  Expected to return a value at the end of arrow function  consistent-return

C:\dev\enginelgtm\src\resources\font.js
   69:81  error  Expected to return a value at the end of function  consistent-return
  105:21  error  Function expected no return value                  consistent-return

C:\dev\enginelgtm\src\resources\loader.js
  263:5  error  Expected to return a value at the end of method 'getFromCache'  consistent-return

C:\dev\enginelgtm\src\resources\parser\texture\ktx2.js
  57:5  error  Expected to return a value at the end of method 'parse'  consistent-return

C:\dev\enginelgtm\src\resources\texture-atlas.js
  53:5  error  Expected to return a value at the end of method 'load'  consistent-return

C:\dev\enginelgtm\src\resources\texture.js
  251:9  error  Method 'open' expected no return value  consistent-return

C:\dev\enginelgtm\src\scene\batching\batch-manager.js
  152:9  error  Method 'addGroup' expected no return value  consistent-return

C:\dev\enginelgtm\src\scene\materials\standard-material-options-builder.js
  277:5  error  Expected to return a value at the end of method '_updateTexOptions'  consistent-return

C:\dev\enginelgtm\src\vr\vr-display.js
  341:5  error  Expected to return a value at the end of method 'getFrameData'  consistent-return

✖ 27 problems (27 errors, 0 warnings)