default ERC21/ERC721 TokenScript

[SmartLayer]

trafficstars

	Send/Receive Activity	Send/Receive Action	Token	Approve Activity
item-view	✓†	✗‡	✓†	✓
view	✓	✓	✗*	✓
asnx:module	✓			✓
ethereu:event	✓			✓

* We should, but probably not for the Activity (A3)
† Defined in the default TokenScript but actually not used (performance reason)
‡ Actions currently use <label> instead of <item-view>.