IcyDwarf v13.8.5

-Inputs and outputs are now stored separately from the source files in 3
folders: Data, Inputs, and Outputs.

Updates to the crack routine:
-Now able to run within a thermal evolution loop. Got rid of as many
tables as possible, such that all properties are overwritten at each
timestep instead of their value at each timestep being stored
separately. Same for each gridpoint, except where it was necessary to
memorize all the gridpoints separately. The thermal output is still
memorized at each gridpoint and timestep since the thermal code hasn't
been integrated yet.

Cryolava routine:
-Realized there was no need to calculate K_i at P_gas: confining
pressure instead. The routine was left unchanged.