+ lightcurve data preprocessing

[avivajpeyi]

Closes #223

• custom remove outliers to help with sigma-clipping issue
• filter data outside transits if len(lc) > 100,000

Motivation for the threshold length 100,000:

This will help speed up ~ 500 analyses

Need to monitor if this all works with some example TOIs

id	toi_numbers	note
0	103	basic
1	178	three-planet
2	237	multimode
3	1812	single-transit
4	102	largedata