CFD-GO/TCLB: Version 6.7

Improved indexing of solids (eg. DEM particles) and improved LatticeAccess functions.

• Switching to steady_clock for walltime by @llaniewski in https://github.com/CFD-GO/TCLB/pull/436
• Tests for d3q27_PSM by @llaniewski in https://github.com/CFD-GO/TCLB/pull/438
• Improved tests by @llaniewski in https://github.com/CFD-GO/TCLB/pull/439
• Solid Container by @llaniewski in https://github.com/CFD-GO/TCLB/pull/435
• Improved LatticeAccess by @llaniewski in https://github.com/CFD-GO/TCLB/pull/440
• Fixing the SolidGrid print issue by @llaniewski in https://github.com/CFD-GO/TCLB/pull/442
• Improved OpenMP support by @llaniewski in https://github.com/CFD-GO/TCLB/pull/443
• Field access checks by @llaniewski in https://github.com/CFD-GO/TCLB/pull/444
• Fixing dynamic access in 2D by @llaniewski in https://github.com/CFD-GO/TCLB/pull/448
• Reduction of the use of rtemplate by @llaniewski in https://github.com/CFD-GO/TCLB/pull/445
• Adding codespaces support by @llaniewski in https://github.com/CFD-GO/TCLB/pull/449
• fix compile to grab c string from cpp string by @TravisMitchell in https://github.com/CFD-GO/TCLB/pull/450
• Fixing hip installation and adding --small option to installation by @llaniewski in https://github.com/CFD-GO/TCLB/pull/453
• Version 6.7 by @llaniewski in https://github.com/CFD-GO/TCLB/pull/452

Full Changelog: https://github.com/CFD-GO/TCLB/compare/v6.6.1...v6.7