ParseVar doesn't handle quoted strings properly

[deslaughter]

Bug description

When ParseVar is used to read quoted strings, such as a file path, it will split the path if it contains a space even though it is within the quotes. The previous guidance has been that paths cannot contain spaces, but this seems like a simple problem to fix.

To Reproduce

Steps to reproduce the behavior:

1. Specify a path containing a space inside a quoted string in the Aerodyn input file for OLAFInputFIleName.
2. OpenFAST will report that it can't find the file because it splits the path at the space.

Expected behavior

OpenFAST should use the full path between the double quotes.

OpenFAST Version

**************************************************************************************************
 OpenFAST

 Copyright (C)  National Renewable Energy Laboratory
 Copyright (C)  Envision Energy USA LTD

 This program is licensed under Apache License Version 2.0 and comes with ABSOLUTELY NO WARRANTY.
 See the "LICENSE" file distributed with this software for details.
 **************************************************************************************************

 OpenFAST-v3.5.3

[andrew-platt]

We might need to add a new routine specifically for file name handling.

[andrew-platt]

We introduced the new file parsing to the primary AeroDyn input file in version 2.6.0, May 2021. I'm a little surprised that this hasn't been an issue for anyone until now.

This was added for some the other modules later, such as InflowWind and HydroDyn.

[andrew-platt]

Fixed with #2558