Added SmartProperties, repurposed PropertyHistory
Added SmartProperties, repurposed PropertyHistory

* SmartProperties has the current data for each smart property
* PropertyHistory points to each tx that affected each smart property
habibmasuro/omniwallet,OmniLayer/omniwallet,Nevtep/omniwallet,VukDukic/omniwallet,OmniLayer/omniwallet,achamely/omniwallet,OmniLayer/omniwallet,OmniLayer/omniwallet,Nevtep/omniwallet,Nevtep/omniwallet,Nevtep/omniwallet,achamely/omniwallet,achamely/omniwallet,habibmasuro/omniwallet,habibmasuro/omniwallet,VukDukic/omniwallet,achamely/omniwallet,habibmasuro/omniwallet,VukDukic/omniwallet