Releast 0.3.0
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**Add**
- dps gsd2xtc command which converts gsd to xtc file.
- dps cmap now allows global and residue specific contacts.
- dps trjconv command which converts trajectory and treat pbc
- Now trajectory tool allows gsd input

**Fix**
- Fix contact cutoff unit issue in dps cmap

**Deprecated** 
- dps contact command is deprecated because of unfixed bug.