Added constraint numeric template type used as base for
all numeric type with valid values range.
Added file for DB data structures - pure data structures to be filled
by DB driver.
Implemented StreetNode DB structures.
Added OutOfBoundValueException for ConstrainedNumeric to throw when out of bound.
Added comments for StaticDatabaseDriver methods.
Implemented getting streetNodes from postgresql.
Added new files to buildsystem.
Added test printout to main file.
Commented qt interface in main file.
Fixed bad postgresql password in main file.