Add project description and details for DB-Flow

Add Two Qubit Test Code and building blocks for bigger Hamiltonians. Dividing off structs for Data and Hamiltonianbuilding

Added Code for building DB-Flow with 2 Qubits. Basic Hamiltonians and test of matricies

2 Qubit Code is set Up. Now do same calculations as with 1.

Tensored hamiltonian code is running.

Build classes for one sigma and two sigma sites from parent class. Functions for init of hamiltonians and basic matrix still missing

Sigma Two site works and first results

Chain of Sites with links in between can be simulated

Energiespectrum and gap