Improve DSPMon captions and position section, add images

Improve captions for DSPMon settings screenshots
Explain reasoning for certain settings
Add screenshots for DSPMon main screen
Add more information about position determination
Process remarks by Norbert

Add HiSPARC DAQ figure
Update trilateratie image, and add svg source
Update GPS satellite image
Add figure caption style from dr. Fokkema's thesis

Captions sans-serif
Figure label is bold
Dash between label and text
Make Trilateratie image 2D, and include Earth
Update text

Emphasize importance of accurate time and postion
Add equation arrays to calrify trilateration
Consistent capitalization for ‘Self-Survey’
Use emph instead of ‘ for terms
Improve captions for settings
Improve info about atom clocks
Add bibliography
Merge commit to fix a conflict in style.tex