Add a limit to all Win32 message loops #28

This works around Waves plugins causing an infinite message loop. Since
we run the loop 30 times per second anyways splitting the loop up into
chunks of 20 shouldn't be an issue.

CHANGELOG.md

@@ -12,6 +12,11 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Don't print calls to `effIdle()` when `YABRIDGE_DEBUG_LEVEL` is set to 1.
 
+### Fixed
+
+- Fix Waves plugins from freezing the plugin process by preventing them from
+  causing an infinite message loop.
+
 ## [1.4.1] - 2020-07-27
 
 ### yabridgectl