add reader for shape/table info; add table expander

• chore(doc): add expand table to readme b0d1f9b
• chore(xml): disable falsy errors on missing relations ea65232
• chore(read): move table data reader to slide-helper 3b9d854
• chore(shape): disable table reader 7e6df11
• chore(image): use a function for altText 0fa0db1
• Merge remote-tracking branch 'origin/main' 45c5e50
• chore(image): use a function for altText 8dec8b8
• Merge pull request #116 fab9d43
• Merge remote-tracking branch 'origin/main' into fork/jrking4/main ea0f4bd
• feat(table): use tags to expand rows or (nested) columns 861e328
• Add Alt Text test 58b5f0d
• Add AltText to Element Info 2674573
• feat(table): clone nested gridCols cf7013e
• Merge remote-tracking branch 'origin/main' into feature-nested-table b30be53
• chore(doc): fix typo in readme 07ce202
• chore(doc): add get shape info to readme toc dc62b7d
• test(read): cross-slide copy shape properties a3d46a5
• feat(read): read shape info / copy shape coordinates; #114 7521c76
• feat(read): read chart series color; #115 9ea96c0
• feat(table): support for nested tables 06b2f34
• fix(table): create para props parent if not existing; fixes #112; fixes #76 bcf90c5
• fix(table): add test for table cell without <a:p> #112 6d1588f
• Merge remote-tracking branch 'origin/main' b4696ca
• chore(test): add example for #113 a9e5ec4
• Merge pull request #111 be7e7d2
• chore(test): add a demo reader for table cells f248ff5

v0.5.0...v0.5.1