Switch to bzalloc from NetObsBindings library

BrowserFilter.cs

@@ -83,7 +83,7 @@ public static unsafe void RefreshBrowserSource(Context* context)
   {
     Module.Log("filter_create called", ObsLogLevel.Debug);
 
-    var context = Module.bzalloc<Context>(); //TODO: change this after this was implemented: https://github.com/kostya9/NetObsBindings/issues/13
+    var context = ObsBmem.bzalloc<Context>();
     context->Source = source;
     context->Settings = settings;
     fixed (byte* intervalId = "interval"u8)

Module.cs

@@ -63,20 +63,6 @@ public static unsafe string ObsTextString(string identifier)
         return resultString;
     }
   }
-
-  /// <summary>Allocates memory for an unmanaged structure using OBS memory management and initializes all fields in it to zero.</summary>
-  /// <typeparam name="T">The type of the structure to allocate.</typeparam>
-  /// <returns>A pointer to the allocated memory.</returns>
-  /// <remarks>Use <see cref="ObsInterop.ObsBmem.bfree(void*)"/> to free the memory.</remarks>
-  public static unsafe T* bzalloc<T>() where T : unmanaged
-  {
-    int structSize = Marshal.SizeOf<T>();
-    var context = (T*)ObsBmem.bmalloc((nuint)structSize);
-    byte* structBytes = (byte*)context;
-    for (int index = 0; index < structSize; index++)
-      structBytes[index] = 0;
-    return context;
-  }
   #endregion Helper methods
 
   #region OBS module API methods