add more definition to read for channel SOH/Data Def

Closes #146

See merge request !166

Fix SOH info not show for bottom of Jerk/DPS and display all info lines for the case data point clicked matches more than one SOH lines.

Closes #145

See merge request !165

Fix SOH info not show for bottom of Jerk/DPS and display all info lines for the case data point clicked matches more than one SOH lines.

Fix bug not getting convert factor for question channel

Closes #152, #151, and #149

See merge request !168

Fix problem with detecting data type

See merge request !172

correct convert factor for Centaur's VPB

Closes #159

See merge request !174

fix bug for path's name when saving GPS file

Closes #140

See merge request !162

Correct RT130 disk usage display

Closes #148

See merge request !171

This reverts commit 41a9988b.

We are currently skipping waveform files by inspecting the name of the
file. However, for some Centaur and Pegasus data sets whose station name
match a pattern used to filter waveform files, all their files are
skipped. We fix this problem by moving the check for waveform files.

Modify Pegasus VE2, VEI convert factor

Closes #156 and #155

See merge request !169

Fix bug happen when select 2 folders with different type

Closes #141

See merge request !163

Fix bug happen when user stop the process before data object is created

Closes #143

See merge request !167

make event DS when there are requested for waveform though TPS and RAW checkboxes aren't checked

Closes #139

See merge request !164

disable not used gui items

See merge request !161

Add functionalities to config handler

Closes #87 and #103

See merge request !118

Correct clicking data point for info

Closes #134 and #86

See merge request !159

Fix channel preferences can't be deleted

Closes #136

See merge request !160

If dataset have more than one keys, allow user to select another key to plot

Closes #93

See merge request !123

Clean up no-need files/ folders and refactoring directory structure

See merge request !158

Fix bug not plotting mass position on main window when preference list is selected

Closes #129

See merge request !153

Fix bug in reftek not plot channel with question mark '?' if use preference list

Closes #128

See merge request !154