Remove discovery headers; update RDM handler enums

Delete rdm_discovery.h and rdm_discovery_statemachine.h (discovery state machine and related API removed/relocated). Update lib-rdm/src/handlers/rdmhandler.cpp: rename enum members to k-prefixed identifiers (PowerState: kFullOff, kStandby, kNormal; ResetMode: kCold) and update all usages accordingly, and change the preprocessor guard from !defined(NODE_RDMNET_LLRP_ONLY) to defined(RDM_RESPONDER). Adjusted conditional checks and responses to match the new identifiers.

Author: vanvught

lib-displayudf/Rules.mk

@@ -14,6 +14,10 @@ ifneq ($(MAKE_FLAGS),)
 		EXTRA_SRCDIR+=src/e131
 	endif
 
+	ifneq (,$(findstring NODE_RDMNET_LLRP_ONLY,$(MAKE_FLAGS)))
+		EXTRA_INCLUDES+=../lib-rdm/include
+	endif
+	
 	ifneq (,$(findstring NODE_DDP_DISPLAY,$(MAKE_FLAGS)))
 		EXTRA_INCLUDES+=../lib-ddp/include
 	endif

lib-dmxnode/Rules.mk

@@ -8,6 +8,9 @@ ifneq ($(MAKE_FLAGS),)
 	ifeq ($(findstring NODE_E131,$(MAKE_FLAGS)), NODE_E131)
 		EXTRA_INCLUDES+=../lib-e131/include
 	endif
+	ifneq (,$(findstring NODE_RDMNET_LLRP_ONLY,$(MAKE_FLAGS)))
+		EXTRA_INCLUDES+=../lib-rdm/include
+	endif
 	ifneq (,$(findstring RDM_RESPONDER,$(MAKE_FLAGS)))
 		EXTRA_INCLUDES+=../lib-rdmsensor/include
 	endif

lib-pixeldmx/Rules.mk

@@ -6,6 +6,9 @@ EXTRA_INCLUDES+=../lib-network/include
 EXTRA_SRCDIR+=src/json
 
 ifneq ($(MAKE_FLAGS),)
+	ifneq (,$(findstring NODE_RDMNET_LLRP_ONLY,$(MAKE_FLAGS)))
+		EXTRA_INCLUDES+=../lib-rdm/include
+	endif
 	ifeq ($(findstring OUTPUT_DMX_SEND,$(MAKE_FLAGS)), OUTPUT_DMX_SEND)
 		EXTRA_INCLUDES+=../lib-dmx/include
 	endif