Fix GESTURE_DRAG and GESTURE_SWIPE_* issues (mostly) for web

[ghost]

Adds a different check to detect GESTURE_DRAG for PLATFORM_WEB.

Adds a DRAG_TIMEOUT define for the previous check.

Adds GESTURE_HOLD to the check to update the GESTURES.Touch.upPosition.

Changes the default value of FORCE_TO_SWIPE to make it less twitchy for high sensitivity web browsers like Chrome for Android.

Fix #3182.

[raysan5]

@ubkp Thank you very much for all the amazing work put into improving the gestures module! Actually the review was int the list of future improvements for the library and you mostly did it all by yourself! Thanks!

One detail, trying the example on Windows (with mouse), I notice that HOLD is always issued after just a TAP, shouldn't it take some time to be detected?

[ghost]

@raysan5 I'm really glad I could help. :)

I replied to the question on the #3182 issue, I think it's easier to track there.