deduplicate contact requests (#287)

* deprecate XContact

* XInfoId

* xInfoId tests

* merging

* saving on connection

* connectByAddress

* remove old connect

* deduplicate contact requests

* check on contact acceptance

* test

* rename response

* reuse CRContactRequestAlreadyAccepted

* Update src/Simplex/Chat.hs

* createConnReqConnection

* simplify controller logic

* store methods + profile change

* index

* more indices

* unXInfoId

* simplify

* XInfo with ID -> XContact

* sync reply to Connect when contact already exists

* update view for sync CRContactAlreadyExists command response

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

.gitignore

@@ -5,12 +5,6 @@
 *.so
 *.dylib
 
-# Test binary, built with `go test -c`
-*.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
-*.out
-
 # Dependency directories (remove the comment below to include it)
 # vendor/
 
@@ -42,9 +36,9 @@ cabal.project.local~
 .ghc.environment.*
 stack.yaml.lock
 
-# Idris
-*.ibc
-
-# chat database
+# Chat database
 *.db
 *.db.bak
+
+# Temporary test files
+tests/tmp