rawinput: reimplement analog relative mode and delay (#674)

## Link to GitHub Issue or related Pull Request, if one exists
#181 

## Description of change
Implement analog relative mode and delay option using a new
millisecond-based algorithm.

## Testing
WIP

src/spice2x/launcher/launcher.cpp

@@ -518,12 +518,6 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::IIDXTDJMode].value_bool()) {
         games::iidx::TDJ_MODE = true;
     }
-    if (options[launcher::Options::IIDXTTDelayP1].is_active()) {
-        games::iidx::TT_DELAY_P1 = options[launcher::Options::IIDXTTDelayP1].value_uint32();
-    }
-    if (options[launcher::Options::IIDXTTDelayP2].is_active()) {
-        games::iidx::TT_DELAY_P2 = options[launcher::Options::IIDXTTDelayP2].value_uint32();
-    }
     if (options[launcher::Options::spice2x_IIDXDigitalTTSensitivity].is_active()) {
         games::iidx::DIGITAL_TT_SENS = (uint8_t)
             options[launcher::Options::spice2x_IIDXDigitalTTSensitivity].value_uint32();

src/spice2x/launcher/options.cpp

@@ -655,30 +655,6 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .game_name = "Beatmania IIDX",
         .category = "Game Options",
     },
-    {
-        // IIDXTTDelayP1
-        .title = "IIDX TT Delay ms (Player 1)",
-        .name = "iidxttdelayp1",
-        .desc = "Delays turntable by number of milliseconds. "
-            "Delay will be *at most* the specified period; maximum error is dependent on the game's poll rate. "
-            "As usual, changing any option requires a restart. Default: 0 (no delay).",
-        .type = OptionType::Integer,
-        .setting_name = "(0-500)",
-        .game_name = "Beatmania IIDX",
-        .category = "Game Options (Advanced)",
-    },
-    {
-        // IIDXTTDelayP2
-        .title = "IIDX TT Delay ms (Player 2)",
-        .name = "iidxttdelayp2",
-        .desc = "Delays turntable by number of milliseconds. "
-            "Delay will be *at most* the specified period; maximum error is dependent on the game's poll rate. "
-            "As usual, changing any option requires a restart. Default: 0 (no delay).",
-        .type = OptionType::Integer,
-        .setting_name = "(0-500)",
-        .game_name = "Beatmania IIDX",
-        .category = "Game Options (Advanced)",
-    },
     {
         // spice2x_IIDXDigitalTTSensitivity
         .title = "IIDX Digital TT Sensitivity",

src/spice2x/launcher/options.h

@@ -69,8 +69,6 @@ namespace launcher {
             IIDXAsioDriver,
             IIDXBIO2FW,
             IIDXTDJMode,
-            IIDXTTDelayP1,
-            IIDXTTDelayP2,
             spice2x_IIDXDigitalTTSensitivity,
             IIDXDigitalTTSocd,
             spice2x_IIDXLDJForce720p,