fix(android): titanium core — applyProperties, userAgent, blob parity, layout, service, timers guard

[mbender74]

Core Titanium module and bootstrap fixes:

• TitaniumModule: add Ti.applyProperties as a method and an explicit userAgent getter/setter; expose missing constants.
• TiBlob: blob text parity and null-terminator fix.
• TiCompositeLayout: fix single-child horizontal layout and layout/resource lookup.
• ServiceProxy: default foreground service type and fix the Timeout import; apply the network whitelist at app start.
• ProxyBindingV8 template: expose apiName on proxy constructor functions.
• bootstrap.js.ejs: wrap setTimeout/setInterval with a typeof === 'function' guard so non-function callbacks throw a TypeError, matching iOS and the JS spec.