* Add PSBT QR code scan/show
This PR introduces support to show and read PSBTs in BC-UR format via animated QR codes. This allows you to use BTCPay with HW devices such as Cobo Vault and Blue wallet to sign transactions without ever exposing the keys outside of that device.
Spec: https://github.com/BlockchainCommons/Research/blob/master/papers/bcr-2020-005-ur.md
I've also bumped the QR code library we sue as it had a bug with large datasets.
* Reuse same code for all and allow wallet import via QR code scan
* remove unecessary js vendor files
* Allow export wallet from settings via QR
* formatting
* bundle
* fix wallet receive bundle
* new feature: Wallet Receive Page
closes#965
* Conserve addresses by waiting till address is spent before generating each run
* fix tests
* Filter by cryptocode before matching outpoint
* fix build
* fix edge case issue
* use address in keypathinfo directly
* rebase fixes
* rebase fixes
* remove duplicate code
* fix messy condition
* fixes
* fix e2e
* fix