Add input_check_1d function to do 1-D input check. Non-array (e.g. float or int) will be converted into 1-D array 2-D arrays will be reshaped to 1-D and this will check for Nx1 type input.
Add input_check_1d function to do 1-D input check.
Non-array (e.g. float or int) will be converted into 1-D array
2-D arrays will be reshaped to 1-D and this will check for Nx1 type input.

Implement input checking with eul2quat. Need to write the documentation for
this function.

NavPy/NavPy,hamid-m/NavPy,adhika/NavPy