allow to select multi folder to load

Closes #74

See merge request !122

fix zooming, order, y for the combination of 2 channels GPS_lk_Unlk and GPS_clock_power

Closes #131 and #127

See merge request !148

Channel Preferences Dialog: scan data source give info according to key, add data time

Closes #98

See merge request !124

intergrate rt130

See merge request !152

fix bug on ctrl/cmd click on waveform

Closes #122

See merge request !146

Fix bug happen when zooming in overlap section

See merge request !149

when zooming, set_axes_ylim only perform when total_points > 1 to prevent the...

Closes #125

See merge request !150

handle plot line when there is only one point

Closes #126

See merge request !151

Change the way RT130 data is read for better performance

See merge request !139

Remove noneed plotting code

See merge request !147

Change to use matplotlib's lim for zooming

See merge request !145

plot SOH channels in user's order

Closes #110

See merge request !128

fix bug lacking of chan_db_info argument when calling set_axes_ylim()

Closes #121

See merge request !144

Fix Gps issues

See merge request !141

Change read_mseed_channels to use MSeed's RecordReader and apply is_multiplex

See merge request !140

perform finalize only once after data loaded

See merge request !142

fixing displayed extreme values for channels

Closes #104 and #96

See merge request !120

connect GUI to new mseed

See merge request !138

handle no known data detected

See merge request !137

combine get wf plot info to get chan plot info

Closes #112

See merge request !131