Crossing Line Detection needs to end early

[TheAngryRaven]

Problem

Currently we begin the crossing detection pretty far out due to the possibility of slow GPS updates.

Description

Memory constraints are really hitting some devices, we must find a way to reduce the buffer size down from the 500 data-points we are currently trying to save. The problem is we need to make sure this step in memory reduction doesn't hurt the reliability of detecting when the driver has cross a sector line.

Proposed Solution

1. Once crossing process has started, save the current driver "line side"
2. Once driver has passed the line, STOP LOGGING
   a. Ignoring if the driver is ON the line, lets get one more point ACROSS the line.

[TheAngryRaven]

Buffersize seems to be fine when shorter, need to investigate what happens when say, waiting for a race to start.

Ending the crossing algo early seems to cause an annoyance where it re-starts the crossing procedure, kind of a pain to figure out how to stop.