…310)

* Move common extensions to shared file
* Updates index to group cmake options under "CMake options" category
* Update left navigation pane to include index link

Co-authored-by: Cody Balos <[email protected]>

Sets up the make target `benchmark`, which will allow the user to run
all the benchmarks at once.
- Adds a macro to add benchmarks to the target `benchmark`
- Sets up output file structure for Caliper files to be saved to.

Adds documentation
- how to build documentation
- how to use SPOT
- how to enable profiling of examples and benchmarks

Adds Adiak, a library to collect metadata
- Used to collect TPL versions, compiler versions, and various other
build data

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Co-authored-by: David J. Gardner <[email protected]>
Co-authored-by: Cody J. Balos <[email protected]>

Fixed a bug in ARKODE, CVODE, CVODES, IDA, and IDAS where the stop time
may not be cleared when using normal mode if the requested output time
is the same as the stop time. Additionally, with ARKODE, CVODE, and
CVODES an unnecessary call to
interpolate the solution at the stop time may occur in this case.

Update answers submodule to current head of main

Co-authored-by: Cody Balos <[email protected]>

Fixes documentation errors noted in #323

Co-authored-by: Cody Balos <[email protected]>