Readd waves2amr submodule (Exawind#1055)

Updates for openfast 3.5.* (Exawind#1006)

Time varying abl bodyforce (Exawind#1025)

* changes to write abl forcing to text file, add to existing reg test

* reading in body force from file

* setting up reg test

* formatting

* using start time and frequency arguments

* write to file with Geostrophic Forcing

* formatting

* reverting last change, because Geostrophic Forcing is reversible

* time-varying target velocity for geostrophic wind

* reg test for time-varying geostrophic wind

* updating to use underscores, but keeping backwards-compatible

* removing unused variable

* proliferate m_coriolis_factor (fix issue from last commit)

* input file documentation

* unit test start, better error feedback

* test to write forces file

* body forcing unit test + better precision

* geostrophic forcing unit test

* Correct source term implementations for temporal discretization

* make body force test self-contained

* add headers to time table files in reg tests, note in documentation

* unused variables

* avoiding angle interpolation issues

* Unit tests for new angle interpolation feature

Ocean Waves Improvements, esp. Stokes Waves (Exawind#1019)

* bug fixes for stokes waves
* new feature for stokes waves, being able to calculate wavelength
* generalize default wave position and de-hardcode gravity in both stokes waves and linear waves

Fix to spinner sampler num_output_points (Exawind#1000)

* Missing line in spinner code
* Fix reg test inputs and add comments

Skip gp io for the GPU tests (Exawind#976)

Enable multilevel inflow/outflow BC with native format (Exawind#970)

Update anelastic (Exawind#961)

Calculate planar average of tke only if it is available (Exawind#956)

Fix issue Exawind#870 (Exawind#947)

* Increased precision of ABLBoundaryPlane::write_file() output

* Fix formatting