Fixes for 32-bit

[oleibman]

I check from time to time. There are a number of problems now, mostly due to the elimination of Php 7.4 and replacement of doc-block typing with explicit Php typing.

• Bitwise functions were particularly affected by PR Strengthen typing #3718 and PR Add all missing native types #3793.
• Chart/Axis and Writer/Xlsx were amusingly affected by PR Chart Axis Display Units and Logarithmic Scale #3836, which added a scaling option which included an array indexed by the known allowable factors, one of which is 1 trillion, which cannot be represented as an integer on a 32-bit system. Issue3833Test, introduced by the same PR (and not suffering any errors) was expanded to test this value.
• Some minor changes to Reader/Xls and Shared/OLE/PPS to accommodate hex values which are negative in 32-bit but which Php-32 may wind up casting to large floating point numbers; it is not clear to me why these hadn't shown up as problems previously. Possibly this is the result of changes in the most recent Php versions.
• BitAndTest, BitOrTest, BitXorTest and Shared/DateTest were adversely affected by PR Better Typing in Test Members #3859 when arguments and/or expected results too large for a 32-bit integer were supplied.
• ImExpTest required a slightly reduced precision for 32-bit. No idea why this hadn't shown up earlier.

This is:

• a bugfix
• a new feature
• refactoring
• additional unit tests

Checklist:

• Changes are covered by unit tests
  • Changes are covered by existing unit tests
  • New unit tests have been added
• Code style is respected
• Commit message explains why the change is made (see https://github.com/erlang/otp/wiki/Writing-good-commit-messages)
• CHANGELOG.md contains a short summary of the change and a link to the pull request if applicable
• Documentation is updated as necessary

Why this change is needed?

Provide an explanation of why this change is needed, with links to any Issues (if appropriate).
If this is a bugfix or a new feature, and there are no existing Issues, then please also create an issue that will make it easier to track progress with this PR.