Add the following changes to support the reading and plotting of TS files:
+ with >8000 dates and
+ with dates in isoformat, e.g. YYYY-MM-DD[*HH[:MM[:SS[.fff[fff]]]].

Detailed changes includes:
+ readfile.read_hdf5_file(): support YYYY-MM-DDTHH:MM format in the date dataset with more relaxed but accurate detection of date and "-"
+ info.py: do not list dates and dates in years, because the former is covered in --date option and the later is not used, to be more compact on TS output
+ utils.plot.scale_data2disp_unit(): set disp_unit to data unit if it's un-scalable data
+ view/draw_scalebar(): do not plot scalebar if the longitude span > 30 deg
+ ptime.py:
   - get_date_str_format(): support the isoformat date and datetimes
   - get_date_range(): extend dmin/dmax to any format supported by get_date_str_format()
   - naming conflict fix for `dt`

+ add --save-res option to turn ON saving residual displacement time-series [OFF by default]

+ add --res-file option to specify the residual file name [timeseriesResidual.h5 by default, same as dem_error.py]