Added modes to player (#44)

* Added States for monsters and corpses

Now can properly identify if a corpse is interactable with a skill ( barbarian, necromancer)
Also getting states about monsters  : Exemple  Soul Killer with Conviction aura:   State  28 // conviction

Also can tell if monster has a state after you used a skill on it  Exemple:   State 56  Terror ( After using Barbarian skill Howl to fear )

Another Exemple  using Grief on Mephistos he now have  states :    2 poison
    52  Preventheal

will be very useful for further development.

* Added modes to player

Now accessible in koolo using : s.data.PlayerUnit.Mode

Those are Modes for player:
const Death: 0;
        const StandingOutsideTown: 1;
        const Walking: 2;
        const Running: 3;
        const GettingHit: 4;
        const StandingInTown: 5;
        const WalkingInTown: 6;
        const Attacking1: 7;
        const Attacking2: 8;
        const Blocking: 9;
        const CastingSkill: 10;
        const ThrowingItem: 11;
        const Kicking: 12;
        const UsingSkill1: 13;
        const UsingSkill2: 14;
        const UsingSkill3: 15;
        const UsingSkill4: 16;
        const Dead: 17;
        const SkillActionSequence: 18;
        const KnockedBack: 19;

* update Added alias(const) for player modes

can be used like this s.data.PlayerUnit.Mode == mode.StandingInTown

pkg/memory/player.go

@@ -2,6 +2,7 @@ package memory
 
 import (
 	"encoding/binary"
+	"github.com/hectorgimenez/d2go/pkg/data/mode"
 
 	"github.com/hectorgimenez/d2go/pkg/data"
 	"github.com/hectorgimenez/d2go/pkg/data/area"
@@ -46,6 +47,7 @@ func (gd *GameReader) GetRawPlayerUnits() RawPlayerUnits {
 			baseStats := gd.getStatsList(statsListExPtr + 0x30)
 			stats := gd.getStatsList(statsListExPtr + 0x88)
 			states := gd.GetStates(statsListExPtr)
+			playerMode := mode.PlayerMode(gd.Process.ReadUInt(playerUnit+0x0c, Uint32))
 
 			rawPlayerUnits = append(rawPlayerUnits, RawPlayerUnit{
 				UnitID:       data.UnitID(unitID),
@@ -62,6 +64,7 @@ func (gd *GameReader) GetRawPlayerUnits() RawPlayerUnits {
 				States:    states,
 				Stats:     stats,
 				BaseStats: baseStats,
+				Mode:      playerMode,
 			})
 			playerUnit = uintptr(gd.Process.ReadUInt(playerUnit+0x150, Uint64))
 		}
@@ -111,6 +114,7 @@ func (gd *GameReader) GetPlayerUnit(mainPlayerUnit RawPlayerUnit) data.PlayerUni
 		LeftSkill:          skill.ID(leftSkillId),
 		RightSkill:         skill.ID(rightSkillId),
 		AvailableWaypoints: availableWPs,
+		Mode:               mainPlayerUnit.Mode,
 	}
 
 	return d