Replace CFE_SB_ValueToMsgId(0) with CFE_SB_INVALID_MSG_ID

[skliper]

Is your feature request related to a problem? Please describe.
Using zero explicitly isn't great, for the most part all cases should be replace with just using the invalid macro:

cfe/modules/cfe_testcase/src/msg_api_test.c:    UtAssert_INT32_EQ(CFE_MSG_Init(NULL, CFE_SB_ValueToMsgId(0), sizeof(cmd)), CFE_MSG_BAD_ARGUMENT);
cfe/modules/cfe_testcase/src/msg_api_test.c:    msgId = CFE_SB_ValueToMsgId(0);
cfe/modules/cfe_testcase/src/message_id_test.c:    CFE_SB_MsgId_t msgid = CFE_SB_ValueToMsgId(0);
cfe/modules/msg/ut-coverage/test_cfe_msg_ccsdsext.c:    CFE_UtAssert_SUCCESS(CFE_MSG_SetMsgId(&msg, CFE_SB_ValueToMsgId(0)));
cfe/modules/msg/ut-coverage/test_cfe_msg_msgid_shared.c:    CFE_SB_MsgId_t    msgid  = CFE_SB_ValueToMsgId(0);
cfe/modules/msg/ut-coverage/test_cfe_msg_init.c:    UtAssert_INT32_EQ(CFE_MSG_Init(NULL, CFE_SB_ValueToMsgId(0), sizeof(cmd)), CFE_MSG_BAD_ARGUMENT);
cfe/modules/msg/ut-coverage/test_cfe_msg_init.c:    UtAssert_INT32_EQ(CFE_MSG_Init(CFE_MSG_PTR(cmd), CFE_SB_ValueToMsgId(0), 0), CFE_MSG_BAD_ARGUMENT);
cfe/modules/sbr/ut-coverage/test_cfe_sbr_map_hash.c:    UtAssert_INT32_EQ(CFE_SBR_SetRouteId(CFE_SB_ValueToMsgId(0), CFE_SBR_ValueToRouteId(0)), 0);
cfe/modules/sbr/ut-coverage/test_cfe_sbr_map_hash.c:    UtAssert_BOOL_FALSE(CFE_SBR_IsValidRouteId(CFE_SBR_GetRouteId(CFE_SB_ValueToMsgId(0))));
cfe/modules/sbr/ut-coverage/test_cfe_sbr_map_hash.c:    msgid[0]   = CFE_SB_ValueToMsgId(0);
cfe/modules/sbr/ut-coverage/test_cfe_sbr_map_direct.c:    UtAssert_INT32_EQ(CFE_SBR_SetRouteId(CFE_SB_ValueToMsgId(0), CFE_SBR_ValueToRouteId(0)), 0);
cfe/modules/sbr/ut-coverage/test_cfe_sbr_map_direct.c:    UtAssert_BOOL_FALSE(CFE_SBR_IsValidRouteId(CFE_SBR_GetRouteId(CFE_SB_ValueToMsgId(0))));
cfe/modules/sbr/ut-coverage/test_cfe_sbr_map_direct.c:    msgid   = CFE_SB_ValueToMsgId(0);
cfe/modules/sbr/ut-coverage/test_cfe_sbr_route_unsorted.c:    UtAssert_BOOL_FALSE(CFE_SBR_IsValidRouteId(CFE_SBR_AddRoute(CFE_SB_ValueToMsgId(0), NULL)));
cfe/modules/sbr/ut-coverage/test_cfe_sbr_route_unsorted.c:    UtAssert_BOOL_FALSE(CFE_SBR_IsValidRouteId(CFE_SBR_AddRoute(CFE_SB_ValueToMsgId(0), &collisions)));
cfe/modules/sbr/ut-coverage/test_cfe_sbr_route_unsorted.c:    msgid[0] = CFE_SB_ValueToMsgId(0);
cfe/modules/tbl/fsw/src/cfe_tbl_task.c:    CFE_MSG_Init(CFE_MSG_PTR(CFE_TBL_Global.NotifyMsg.CommandHeader), CFE_SB_ValueToMsgId(0),

Describe the solution you'd like
Replace with CFE_SB_INVALID_MSG_ID

Describe alternatives you've considered
None

Additional context
None

Requester Info
Jacob Hageman - NASA/GSFC