Fix Python 3.12 \ invalid escape warning | add requirements.txt

[D3vil0p3r]

Fix the following warnings:

/usr/share/sparrow-wifi/wirelessengine.py:674: SyntaxWarning: invalid escape sequence '\('
  p_bss = re.compile('^BSS (.*?)\(')
/usr/share/sparrow-wifi/wirelessengine.py:685: SyntaxWarning: invalid escape sequence '\-'
  p_signal = re.compile('^.*?signal:.*?([\-0-9]+).*?dBm')
/usr/share/sparrow-wifi/sparrowbluetooth.py:369: SyntaxWarning: invalid escape sequence '\('
  p_company = re.compile('Company: (.*) \(')
/usr/share/sparrow-wifi/plugins/falconwifi.py:702: SyntaxWarning: invalid escape sequence '\!'
  p = re.compile('KEY FOUND\! \[(.*?)\].*')
/usr/share/sparrow-wifi/plugins/falconwifi.py:780: SyntaxWarning: invalid escape sequence '\!'
  p = re.compile('KEY FOUND\! \[(.*?)\].*')

and add requirements.txt with the right dependencies. Close #102

[D3vil0p3r]

@ghostop14 can you give a quick look and merge it please?