OpenSystemsDevelopment / qpdf

Apply various Clang-Tidy rules

Remove redundant loop in QPDFWriter::prepareFileForWrite

Avoid unnecessary copying of stream dictionary in QPDF::readObject

Code tidy - reflow comments and strings

Rename README-maintainer to README-maintainer.md and add table of content

Remove lgtm.yml

lgtm was discontinued in 2022.

Add .git-blame-ignore-revs file

Code tidy - reflow comments and strings

Otherwise we get errors if we added a class.

Code formating : drop 'this->' in 'this->m'

Manual edits for cases not handled by search and replace

Using search and replace.

Fix doc comment in QPDFObjGen::set