v0.13.0

MIRT v0.13.0

Diff since v0.12.0

Merged pull requests:

• [CI] set up documentation (#48) (@johnnychen94)
• reorganize time/ to benchmark/ and set up CI (#50) (@johnnychen94)
• misc tune to Project.toml (#51) (@johnnychen94)
• use github action for unittest (#52) (@johnnychen94)
• Use mktempdir (#57) (@JeffFessler)
• No fld_write test on windows (#59) (@JeffFessler)
• update README badge (#60) (@johnnychen94)
• ImageGeom (#61) (@JeffFessler)
• [CI] move codecov to Github Action (#62) (@johnnychen94)
• Improve fld tests (#63) (@JeffFessler)
• sinogeom :moj plot (#64) (@JeffFessler)
• Test maskit (#66) (@JeffFessler)
• More fld test coverage (#67) (@JeffFessler)
• SinoGeom (#68) (@JeffFessler)