Description

Please describe the changes/features in this pull request.

This update deals with GLL library and Lagrange polynomials library.

Added routines to calculate GLL points, GLL weights required for integration, lagrange polynomials and its derivatives. All the required data is stored in GLL class (gll.cpp).

Documentation update:

Created developer documentation section - github workflow and pre-commit sections are complete.

Issue Number

If there is an issue created for these changes, link it here #3

Checklist

Please make sure to check developer documentation on specfem docs.

[x] I ran the code through pre-commit to check style [] My code passes all the integration tests [x] I have added sufficient unittests to test my changes [x] I have added/updated documentation for the changes I am proposing [x] I have updated CMakeLists to ensure my code builds [] My code builds across all platforms

PrincetonUniversity / SPECFEMPP

Gll library #5

Description

Issue Number

Checklist