Redefining built-in 'input' with tools._scalar_out() and tools._array_out()

[CameronTStark]

Describe the bug

The built-in function input() is being redefined in these two functions in tools. There is currently no functional issue but to avoid future linting/formatting issues I'd suggest changing the name.

To Reproduce
Steps to reproduce the behavior:

1. Open pvlib.tools with an IDE
2. Review the code for _scalar_out() and _array_out() with a linter turned on.

I'll create a PR addressing this specifically.