Add one intent-filter for each county in moh_kenya_echis flavor

[kennsippell]

#310

b2e815f we used a new resource string which specified the host (including optional wildcard) to be used by the intent. We can't do exactly what we did in #307 because it will require a change to existing flavors. This slight variation creates two data elements for the same intent-filter. It's a bit concerning because, we're registering the following:

Scenario	app_host	intent_host	Behavior
Branded Normal (eg. DTree)	dtree.com	empty	Good
eCHIS Kenya	empty	*-echis.health.go.ke	Good
Unbranded	empty	empty	No intents work

I welcome input to confirm this is the best path available.

I can't find any way to: add conditions in intent-filters, use app_host | intent_host, or dynamically add intents in code.The only other viable options I've found is to achieve this by overwriting AndroidManifest.xml directly for flavors which want this functionality. To achieve this, I believe we'd need to duplicate the list of urls (cannot reuse the data in instances.xml). I suspect it's not very pretty. Please let me know if there is a better way to do this!

Uses AndroidManifest.xml to add intent-filters per county. moh_kenya_echis only.

[kennsippell]

Great answer to above question here. I'm going to redo this per @jkuester's suggestion of the AndroidManifest.xml approach.

[jkuester]

Can confirm that all URLs are properly registered:

LGTM!

[kennsippell]

Thanks @jkuester . Do you think we should merge this into #313 or keep them separate?

[jkuester]

@kennsippell I say just merge it now and they can both go into master together on #313!