Get a value from a HashList hash.
int GetHash(HashList *Hash, const char *HKey, long HKLen, void Data);**
Retrieve the data (Data) associated with the key (HKey) from the hash (Hash).
|Hash||Pointer to a HashList hash|
|HKey||Pointer to a C string containing the key to search for|
|HKLen||Size of string that is the key|
|Data||The address of a pointer that will refer to the data associated with the key|
1 if the key was found and Data is set to point to the data.
0 if the key was not found.