v1.7.3

BandedMatrices v1.7.3

Diff since v1.7.2

Merged pull requests:

• Use lts version in CI (#445) (@jishnub)
• Implement sum (#446) (@max-vassili3v)
• implement bandwidths for OneElement (#447) (@max-vassili3v)
• Docstring for lu! (#449) (@lxvm)
• Fix layout of cholesky(Symmetric(view(BandedMatrix))) (#451) (@DanielVandH)

Closed issues:

• Cholesky of a view of a BandedMatrix forgets the structure (#450)