Add flag for Excel 4 macros in composite documents

[kiddkaffeine]

This includes a composite (non-OOXML) Excel document with a Excel 4 macro. In the pre-OOXML world, these macros are binary and I'm not sure how to handle them, so this just marks their presence. (In OOXML, they're stored as text, but that come will later.)

Not sure how to unit test this without using EventFactory, am open to suggestions.

[pjfanning]

I added this but then reverted it due to https://github.com/apache/poi/actions/runs/4452719179/jobs/7820620683

Causes issues like this:

Caused by: java.lang.IllegalStateException: bad function index (54, false)
	at org.apache.poi.ss.formula.ptg.AbstractFunctionPtg.lookupName(AbstractFunctionPtg.java:143)
	at org.apache.poi.ss.formula.ptg.FuncVarPtg.lookupName(FuncVarPtg.java:82)
	at org.apache.poi.ss.formula.ptg.AbstractFunctionPtg.getName(AbstractFunctionPtg.java:72)
	at org.apache.poi.ss.formula.ptg.AbstractFunctionPtg.toFormulaString(AbstractFunctionPtg.java:95)
	at org.apache.poi.ss.formula.FormulaRenderer.toFormulaString(FormulaRenderer.java:99)
	at org.apache.poi.hssf.model.HSSFFormulaParser.toFormulaString(HSSFFormulaParser.java:89)
	at org.apache.poi.hssf.usermodel.HSSFCell.getCellFormula(HSSFCell.java:643)
	at org.apache.poi.hssf.usermodel.HSSFCell.toString(HSSFCell.java:1045)
	at org.apache.poi.stress.SpreadsheetHandler.readContent(SpreadsheetHandler.java:84)
	at org.apache.poi.stress.SpreadsheetHandler.handleWorkbook(SpreadsheetHandler.java:38)
	at org.apache.poi.stress.HSSFFileHandler.handleFile(HSSFFileHandler.java:43)
	at org.apache.poi.stress.TestAllFiles.lambda$handleFile$1(TestAllFiles.java:209)
	at org.junit.jupiter.api.AssertDoesNotThrow.assertDoesNotThrow(AssertDoesNotThrow.java:49)
	... 41 more