MessageStore's Migrate0 (and the Migrate1/2/3 siblings) called
Plugin.Log.Information directly, which prevented an isolated xUnit
construction test from running — Dalamud.dll cannot load in the test
AppDomain. With IPluginLogProxy threaded through the ctor and the inner
MessageEnumerator, the whole MessageStore.cs file is now Dalamud-static
free and the Build-Suite covers it (Floor 688 -> 690).
This is the second half of F12.2; the remaining ~82 Plugin.Log call
sites in the rest of the plugin will be routed through the static
Plugin.LogProxy wrapper in a follow-up commit.
JonKazama-Hellion
dca5de4085