[ALOY-1316] Support use of $.args.* in any XML attribute or TSS property

[feons]

https://jira.appcelerator.org/browse/ALOY-1316

Not sure if it's a good idea to treat '$.args.*' as an expression. Maybe we should differentiate a string and a js expression when setting properties.

[brentonhouse]

@feons - Checking to see what needs to updated to merge.

[feons]

@brentonhouse, rebased. Please shower this with some review love!

[brentonhouse]

@ewanharris - Is this PR something we can merge now?

[ewanharris]

@feons, @brentonhouse. I'd noticed an open ticketfrom @Topener about allowing controller created variables to be used in tss, his third suggestion is related to using $ to allow this. What do you think about expanding this PR to allow this usage?

// mapview.js
$.timap = require('ti.map');
 
// mapview.tss
type: $.timap.POLYLINE_PATTERN_DASHED,

Edit: Posted an update on the ticket after looking into it

[brentonhouse]

@ewanharris - sounds good!

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