Fix ResetRamp to wait for .5 seconds after limit switch is reached to reset encoder

[bengold22]

Due possibly to behavior of the chain, the "reset ramp" action is not being very consistent. A possible approach to get the encoder to read consistently:

• In isFinished(), mark the time when the limit switch is reached but do not reset the encoder and do not actually finish
• .5 seconds after this point, return true in isFinished

[noahheller]

See #issuecomment-1967906003