add cache to pubkeyring test. Speedup 2x
add cache to pubkeyring test. Speedup 2x

ionux/copay,johnsmith76/Lite-Wallet,wallclockbuilder/copay,troggy/colu-copay-wallet,kleetus/copay,bitjson/copay,troggy/unicoisa,cmgustavo/copay,gabrielbazan7/copay,javierbitpay/copay,ObsidianCryptoVault/copay,wyrdmantis/copay,jameswalpole/copay,bitchk-wallet/copay,Tetpay/copay,robjohnson189/copay,BitGo/copay,isocolsky/copay,digibyte/digibytego,payloadpk/wallet,matiu/copay,janko33bd/copay,troggy/copay,jmaurice/copay,startcoin-project/startwallet,fr34k8/copay,LedgerHQ/copay,jameswalpole/copay,MonetaryUnit/copay,dabura667/copay,troggy/copay,bitjson/copay,Bitcoin-com/Wallet,bitchk-wallet/copay,philosodad/copay,Bitcoin-com/Wallet,ObsidianCryptoVault/copay,Kirvx/copay,javierbitpay/copay,kleetus/copay,bechi/copay,BitGo/copay,matiu/copay,Groestlcoin/GroestlPay,DigiByte-Team/copay,bechi/copay,ajp8164/copay,msalcala11/copay,Kirvx/copay,cobit-wallet/cobit,JDonadio/copay,MonetaryUnit/copay,jmaurice/copay,payloadpk/wallet,cmgustavo/copay,philosodad/copay,philosodad/copay,gabrielbazan7/copay,gabrielbazan7/copay,willricketts/copay,troggy/copay,payloadtech/wallet,cobit-wallet/cobit,julianromera/copay,kleetus/copay,hideoussquid/aur-copay,BitGo/copay,DigiByte-Team/copay,robjohnson189/copay,MonetaryUnit/copay,mpolci/copay,hideoussquid/aur-copay,solderzzc/copay,CryptArc/platinumpay,troggy/unicoisa,CryptArc/platinumpay,JDonadio/copay,javierbitpay/copay,mpolci/copay,isocolsky/copay,payloadtech/wallet,bankonme/copay,willricketts/copay,bankonme/copay,MonetaryUnit/copay,mzpolini/copay,solderzzc/copay,cobit-wallet/cobit,digibyte/digibytego,janko33bd/copay,robjohnson189/copay,robjohnson189/copay,julianromera/copay,bitjson/copay,BitGo/copay,willricketts/copay,Groestlcoin/GroestlPay,Bitcoin-com/Wallet,bitchk-wallet/copay,urv2/wallet,startcoin-project/startwallet,julianromera/copay,julianromera/copay,hideoussquid/aur-copay,urv2/wallet,Kirvx/copay,solderzzc/copay,Tetpay/copay,Neurosploit/copay,LedgerHQ/copay,bechi/copay,ztalker/copay,javierbitpay/copay,payloadpk/wallet,wallclockbuilder/copay,troggy/unicoisa,cmgustavo/copay,DigiByte-Team/copay,payloadtech/wallet,jameswalpole/copay,Groestlcoin/GroestlPay,johnsmith76/Lite-Wallet,msalcala11/copay,urv2/wallet,ionux/copay,matiu/copay,habibmasuro/copay,mpolci/copay,ObsidianCryptoVault/copay,tanojaja/copay,ObsidianCryptoVault/copay,Kirvx/copay,mpolci/copay,DigiByte-Team/copay,LedgerHQ/copay,ionux/copay,wyrdmantis/copay,fr34k8/copay,jmaurice/copay,troggy/copay,DigiByte-Team/copay,bitjson/copay,Neurosploit/copay,JDonadio/copay,JDonadio/copay,Bitcoin-com/Wallet,LedgerHQ/copay,habibmasuro/copay,digibyte/digibytego,bankonme/copay,philosodad/copay,janko33bd/copay,mzpolini/copay,troggy/colu-copay-wallet,ztalker/copay,habibmasuro/copay,fr34k8/copay,msalcala11/copay,tanojaja/copay,Neurosploit/copay,johnsmith76/Lite-Wallet,ztalker/copay,gabrielbazan7/copay,jameswalpole/copay,hideoussquid/aur-copay,startcoin-project/startwallet,cmgustavo/copay,payloadtech/wallet,troggy/unicoisa,ionux/copay,startcoin-project/startwallet,mzpolini/copay,ajp8164/copay,DigiByte-Team/copay,bankonme/copay,Groestlcoin/GroestlPay,isocolsky/copay,ztalker/copay,fr34k8/copay,tanojaja/copay,CryptArc/platinumpay,wallclockbuilder/copay,ajp8164/copay,dabura667/copay,mzpolini/copay,troggy/colu-copay-wallet,matiu/copay,payloadpk/wallet,kleetus/copay,CryptArc/platinumpay,wallclockbuilder/copay,habibmasuro/copay,Neurosploit/copay,msalcala11/copay,wyrdmantis/copay,jmaurice/copay,urv2/wallet,willricketts/copay,solderzzc/copay,wyrdmantis/copay,dabura667/copay,isocolsky/copay,DigiByte-Team/copay,tanojaja/copay,johnsmith76/Lite-Wallet,troggy/colu-copay-wallet