SDSL 3.0.3 Release

SDSL 3.0.2 Release

SDSL 3.0.1 Release

SDSL 3.0.0 Release

This is the first release of SDSL v3.
Main differences to v2 are:
* header-only library
* support for serialisation via cereal
* compatible with C++17 and C++20

Update CMakeLists.txt

Merge pull request simongog#319 from simongog/address318

simongog#318: Added warning if git is not installed

Merge pull request simongog#199 from simongog/k2_treap

Add K^2-Treap Implementation

Merge pull request simongog#136 from xosh/benchmark_lcp

Benchmark lcp

New version.

Merge pull request #116 from xosh/feature_wt

Feature wt