Eliminate m_measurement_inch to clean up logic for priority of MEASUREMENT and INSUNITS.
Save the actual scaling factor rather than the scaling enum so a switch statement is not executed for each call to mm()
Add to CDxfRead the work to handle dxfScaling option, ImpExpDxfRead just has to set it up now.
Get the scaling factor from a lookup table rather than a switch statement
Display a message explaining what the scaling factor is and where it comes from
Remove large amount of Lint.
Avoid spurious diffs from inadvertent newline changes by letting git
normalize newlines in the path module as well, just as a list of other
modules including Draft already do.
This effectively standardizes all checked-in code to Unix newlines, but
checkouts might use CRLF if that is the user preference.
