Add kill switches to the PinePhone

[ryo]

* At the moment the Pine phone is probably the most secure phone that is actually  "available to purchase on the open market",

Pure's phone may be more secure, BUT :
  1) It is not yet available. 
  2)  It costs as much as 5 Pine Convergent phones          *( that is for the cheaper, of their 2 Pure phones )

IF they were to go to all the trouble of putting on external switches,

Then  I would also like to see them use separate devices, instead of the all in one modem/gps/etc....

    But that would force up the price way too much.$$

Speaking of open markets, it would be nice if Pine64 would add support for crypto payments to their storefront, it would help with Pinephone sales a lot especially with the hyperinflation and collapse of the US/petro dollar on the horizon.
Monero and Bitcoin are a must, because Monero is the privacy coin that I expect to become the main currency after the US dollar collapse, and Bitcoin because it's still the most hodl'd crypto out there, so more likely that potentional buyers would use that.