refactor: java interop

Author: BFergerson

src/main/kotlin/spp/protocol/instrument/throttle/InstrumentThrottle.kt

@@ -30,7 +30,10 @@ data class InstrumentThrottle(
     val step: ThrottleStep,
 ) {
     companion object {
+        @JvmStatic
         val DEFAULT: InstrumentThrottle = InstrumentThrottle(1, ThrottleStep.SECOND)
+
+        @JvmStatic
         val NONE: InstrumentThrottle = InstrumentThrottle(-1, ThrottleStep.SECOND)
     }