Update: Implement Object alignment and trim expanding in FSS Read programs and restructure the program flags.
The program flags for the standard-specific functionality vs the program arguments were previously stored in the same bit space.
This breaks the two parts into the main program flags and the "feature" flags.
Implement support for new functionality where the Object structure can be optionally preserved.
Implement support for new functionality where the tabbing of the Object can be preserved, even when trimmed.
This is a step towards a "pretty print" mode that is more or less an "original print" mode.
The tabbing structure is now well preserved for standards like FSS Extended List (FSS-0003).
The Object alignment can determined from the Object close.
Use the `closes` structure to identify how the Object end is tabbed.
Then use that tabbing for the Object.
When trimming is enabled, still apply that tabbing.
This is done only for standards where such behavior makes sense.
The original print is now better preserved.
Printing an Object can now print the before and after Object characters (usually white space).
The trimming and original print may be used together to produce the results where the is no white space before or after the Object but everything else from the original source is preserved.
This combination of trim and original essentially ensure that the old behavior can be still produced.
I would further note that the processing of the FSS Embedded List (FSS-0008) Objects is not recursively performed.
No trimming or anything like that is applied at this time.
Only the selected depth is recursed into such that the Object and Content are processed.
I made this decision to keep the design as simple as possible.
Should I get the motivation and the time, then I may at some point in the future decided to recursively process and format all of the embedded structures.
I happened to notice duplicate and unused flags.
These are now removed.
Update the runtime tests accordingly.
Add new runtime tests to test the updated behavior.
I used the 0.6 and 0.7 to test these and I compared the results.
There is a discrepancy in some of 0.6 and 0.7 tests.
I will have to follow this commit with additional test fixes as necessary pending further review.