Fix broken negative stats, update some stat description (#79)

* Fix broken negative stats, update some stat description

* ###

* #2

* curses is necro, frw on armor is velocity percent ( unused)

* Update rules to accept negative value

fix a bug with unique grand charm tz

[name] == grandcharm && [quality] == unique # ([fireresist] + [coldresist] + [lightresist]) >= -75

Single stat rules like [coldresist] >= -75 require the stat to exist

expressions like ([fireresist] + [coldresist] + [lightresist]) >= -75 treat missing stats as 0

Unidentified items with any stat requirements need identification first

* LevelReq + identifiedName added for all Crafted items

* Fix issue with rule.go

* Update stat throw damage and basename: GrandCharm -- Grand Charm

* Adjusting rule for ItemLevelReq  = 0

* update rule again

pkg/memory/process.go

@@ -20,6 +20,13 @@ type Process struct {
 	moduleBaseSize       uint32
 }
 
+const (
+	Int8  = 1 // signed 8-bit integer
+	Int16 = 2 // signed 16-bit integer
+	Int32 = 4 // signed 32-bit integer
+	Int64 = 8 // signed 64-bit integer
+)
+
 func NewProcess() (Process, error) {
 	module, err := getGameModule()
 	if err != nil {
@@ -144,6 +151,22 @@ func bytesToUint(bytes []byte, size IntType) uint {
 
 	return 0
 }
+func ReadIntFromBuffer(bytes []byte, offset uint, size IntType) int {
+	return bytesToInt(bytes[offset:offset+uint(size)], size)
+}
+func bytesToInt(bytes []byte, size IntType) int {
+	switch size {
+	case Int8:
+		return int(int8(bytes[0]))
+	case Int16:
+		return int(int16(binary.LittleEndian.Uint16(bytes)))
+	case Int32:
+		return int(int32(binary.LittleEndian.Uint32(bytes)))
+	case Int64:
+		return int(int64(binary.LittleEndian.Uint64(bytes)))
+	}
+	return 0
+}
 
 func (p Process) ReadStringFromMemory(address uintptr, size uint) string {
 	if size == 0 {