fix(wm): limit to a single virtual desktop

An issue was reported in which switching between Windows Virtual
Desktops was causing issues with the layout generation. This was due to
WinEvents being emitted from other Virtual Desktops ending up in the WM
state when they shouldn't.

This commit introduces a check to ensure that the WM will only listen to
events and commands emitted from the Windows Virtual Desktop that it was
started on.

fix #15

Cargo.lock

@@ -160,6 +160,37 @@ dependencies = [
  "tracing-error",
 ]
 
+[[package]]
+name = "com"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a30a2b2a013da986dc5cc3eda3d19c0d59d53f835be1b2356eb8d00f000c793"
+dependencies = [
+ "com_macros",
+]
+
+[[package]]
+name = "com_macros"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7606b05842fea68ddcc89e8053b8860ebcb2a0ba8d6abfe3a148e5d5a8d3f0c1"
+dependencies = [
+ "com_macros_support",
+ "proc-macro2",
+ "syn",
+]
+
+[[package]]
+name = "com_macros_support"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97e9a6d20f4ac8830e309a455d7e9416e65c6af5a97c88c55fbb4c2012e107da"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "const-sha1"
 version = "0.2.0"
@@ -491,6 +522,7 @@ dependencies = [
  "tracing-subscriber",
  "uds_windows",
  "which",
+ "winvd",
 ]
 
 [[package]]
@@ -1439,6 +1471,17 @@ dependencies = [
  "windows_gen",
 ]
 
+[[package]]
+name = "winvd"
+version = "0.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bab2d5c745381b9c72797230150ec62244e693064fa0d654b5c4e6c75132a56"
+dependencies = [
+ "com",
+ "crossbeam-channel",
+ "once_cell",
+]
+
 [[package]]
 name = "ws2_32-sys"
 version = "0.2.1"