v0.2.0

ProbNumDiffEq v0.2.0

Diff since v0.1.9

Merged pull requests:

• More efficient initialization via TaylorIntegration.jl (#66) (@nathanaelbosch)
• New ordering of the states; New minor version! (#67) (@nathanaelbosch)
• Small optimizations throughouth the codebase (#68) (@nathanaelbosch)