v0.5.1

TopOpt v0.5.1

Diff since v0.5.0

Merged pull requests:

• JuliaFormatter CI (#83) (@mohamed82008)
• [WIP] Neural networks for topology optimisation (#87) (@mohamed82008)
• Use BlueStyle in JuliaFormatter (#89) (@mohamed82008)
• WCSMO 14 demos and files (#90) (@mohamed82008)