don't set plugin to fail state if we threw InvalidPluginOperationException

These are supposed to indicate to the user that they called a function at the wrong point in time. We don't want to actually mutate the state in that case.

Dalamud/Plugin/Internal/Exceptions/InternalPluginStateException.cs

@@ -0,0 +1,16 @@
+namespace Dalamud.Plugin.Internal.Exceptions;
+
+/// <summary>
+/// An exception to be thrown when policy blocks a plugin from loading.
+/// </summary>
+internal class InternalPluginStateException : InvalidPluginOperationException
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="InternalPluginStateException"/> class.
+    /// </summary>
+    /// <param name="message">The message to associate with this exception.</param>
+    public InternalPluginStateException(string message)
+        : base(message)
+    {
+    }
+}