File search feature

[Nielsbishere]

The following would be great:

• Find String in file (case sensitive on/off, compression on/off)
• Find WString in file (case sensitive on/off, compression on/off)
• Find file in file (Provide hash or file, compression on/off)
• Find hex values in file (compression on/off)
• Find int in file (bytes, little endian on/off, compression on/off)
• Find offset in file
• Find instruction in file (thumb on/off, compression on/off)