feat: add compact block filter client

Thanks to @thunderbiscuit for getting the work started initially.

Author: thunderbiscuit

.github/workflows/test-swift.yaml

@@ -24,4 +24,4 @@ jobs:
 
       - name: "Run Swift tests"
         working-directory: bdk-swift
-        run: swift test --skip LiveElectrumClientTests --skip LiveMemoryWalletTests --skip LiveTransactionTests --skip LiveTxBuilderTests --skip LiveWalletTests
+        run: swift test --skip LiveElectrumClientTests --skip LiveMemoryWalletTests --skip LiveTransactionTests --skip LiveTxBuilderTests --skip LiveWalletTests --skip LiveKyotoTests

.gitignore

@@ -7,6 +7,8 @@ local.properties
 *.log
 *.dylib
 *.so
+*.db
+*/data/signet
 .DS_Store
 testdb
 xcuserdata