Makes the ontouch* events on window optional.

Micah Zoltu · Micah Zoltu · commit a9a0768c6df8 · 2019-09-27T18:01:41.000+08:00
Browsers without touch support (e.g., Firefox/Chrome on desktop) will not have `ontouch*` events defined on `window`, so the current type definition is not correct.

package-lock was out of date and auto-updated on `npm install`.  I can roll that back if desired.
diff --git a/inputfiles/overridingTypes.json b/inputfiles/overridingTypes.json
@@ -129,6 +129,18 @@
                     "property": {
                         "onerror": {
                             "override-type": "OnErrorEventHandler"
+                        },
+                        "ontouchcancel": {
+                            "nullable": 1
+                        },
+                        "ontouchend": {
+                            "nullable": 1
+                        },
+                        "ontouchmove": {
+                            "nullable": 1
+                        },
+                        "ontouchstart": {
+                            "nullable": 1
                         }
                     }
                 }

Original file line number	Diff line number	Diff line change
`@@ -129,6 +129,18 @@`
`129`	`129`	`"property": {`
`130`	`130`	`"onerror": {`
`131`	`131`	`"override-type": "OnErrorEventHandler"`
	`132`	`+ },`
	`133`	`+ "ontouchcancel": {`
	`134`	`+ "nullable": 1`
	`135`	`+ },`
	`136`	`+ "ontouchend": {`
	`137`	`+ "nullable": 1`
	`138`	`+ },`
	`139`	`+ "ontouchmove": {`
	`140`	`+ "nullable": 1`
	`141`	`+ },`
	`142`	`+ "ontouchstart": {`
	`143`	`+ "nullable": 1`
`132`	`144`	`}`
`133`	`145`	`}`
`134`	`146`	`}`