Improved clusteredCellsDensity to validate cell indices and refactored coordinate calculation to be 1-based. Replaced tileStartPos with estimateTileStartPosition for more flexible tile positioning, updated exports accordingly, and bumped VERSIONINFO to 1.0.3.
Introduces clusteredCellsDensity to evaluate density of selected cells within a grid. Updates module version to 1.0.0 and exports the new function for external use.