Add wallet serialization to disk
Add wallet serialization to disk

curtislacy/omniwallet,habibmasuro/omniwallet,VukDukic/omniwallet,Nevtep/omniwallet,habibmasuro/omniwallet,dexX7/omniwallet,ripper234/omniwallet,achamely/omniwallet,FuzzyBearBTC/omniwallet,curtislacy/omniwallet,arowser/omniwallet,arowser/omniwallet,Nevtep/omniwallet,habibmasuro/omniwallet,VukDukic/omniwallet,dexX7/omniwallet,achamely/omniwallet,arowser/omniwallet,OmniLayer/omniwallet,FuzzyBearBTC/omniwallet,Nevtep/omniwallet,dexX7/omniwallet,OmniLayer/omniwallet,VukDukic/omniwallet,achamely/omniwallet,Nevtep/omniwallet,achamely/omniwallet,habibmasuro/omniwallet,curtislacy/omniwallet,OmniLayer/omniwallet,ripper234/omniwallet,OmniLayer/omniwallet,ripper234/omniwallet,FuzzyBearBTC/omniwallet