Feature/wifi (#409)

* initial commit for wifi feature

* implements wifi.get

* implements signal strength, removes macro system, makes compatible with rust stable

* remove selected row from wifi info

* refactor to correctly use rpc-toolkit

* remove redundant line from invoke error rendering

* Apply suggestions from code review

* adds display for wifi.get

* use invoke

* use remove

* use tokio native timeout

* use correct null output

* Apply suggestions from code review

Co-authored-by: Aiden McClelland <3732071+dr-bonez@users.noreply.github.com>

* fix borrowing issues

Co-authored-by: Aiden McClelland <3732071+dr-bonez@users.noreply.github.com>

appmgr/Cargo.lock

@@ -802,6 +802,7 @@ dependencies = [
  "http",
  "hyper-ws-listener",
  "indexmap",
+ "isocountry",
  "itertools 0.10.1",
  "jsonpath_lib",
  "lazy_static",
@@ -1392,6 +1393,16 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68f2d64f2edebec4ce84ad108148e67e1064789bee435edc5b60ad398714a3a9"
 
+[[package]]
+name = "isocountry"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ea1dc4bf0fb4904ba83ffdb98af3d9c325274e92e6e295e4151e86c96363e04"
+dependencies = [
+ "serde",
+ "thiserror",
+]
+
 [[package]]
 name = "itertools"
 version = "0.8.2"