ddr: automatically register codecs on launch (#351)

## Link to GitHub Issue, if one exists
#345 

## Description of change
On launch of spice.exe / spice64.exe, call `regsvr32` on known codecs in
the `com` directory.

Add an option to skip this (`-ddrnocodec`) as a chicken bit.

## Testing
Tested 32 and 64 bit DDR.

src/spice2x/launcher/options.cpp

@@ -809,6 +809,15 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .game_name = "Dance Dance Revolution",
         .category = "Game Options",
     },
+    {
+        // DDRSkipCodecRegisteration
+        .title = "DDR Skip Codec Registration",
+        .name = "ddrnocodec",
+        .desc = "Prevent automatic registration of codecs in the com folder",
+        .type = OptionType::Bool,
+        .game_name = "Dance Dance Revolution",
+        .category = "Game Options (Advanced)",
+    },
     {
         .title = "Force Load Pop'n Music Module",
         .name = "pnm",