0.9.4: Support SPK Types 8/12 + export Quaternion/DCM multiplication to Python + Initial C++ bindings

What's Changed

• Update READMEs with supported SPK types table by @ChristopherRabotin in #641
• Add llms.txt for LLM context by @ChristopherRabotin in #645
• Support SPK Type 12 - Hermite Equal Time Steps by @ChristopherRabotin in #643
• Support SPK Type 8 - Lagrange Equal Time Steps by @ChristopherRabotin in #644
• Update readme by @ChristopherRabotin in #647
• Expose hifitime types to C++ via CXX by @ChristopherRabotin in #646
• build(deps): update rand requirement from 0.9.1 to 0.10.0 by @dependabot[bot] in #649
• Fix STK .e file interpolation degree calculation by @ChristopherRabotin in #653
• Export DCM and Quaternion multiplication to Python by @ChristopherRabotin in #654

Full Changelog: 0.9.3...0.9.4