Added time series object and a load-ts primitive, data is properly loaded into the LogoTimeSeries structure, example code started.
begin implementation of get method
working on time series, gets functional but still need interp
more work on time series retrieval, rows can be returned as a list
completed getRange, opted to make all be the keyword for retrieving a whole row
exception instead of null on get-exact (closes #13)
time series example