[RELEASE] iText 7 pdfHTML - 2.1.1

https://github.com/itext/i7n-pdfhtml/releases/tag/2.1.1

* release/2.1.1:
  [RELEASE] 2.1.1-SNAPSHOT -> 2.1.1
  Add test. DEVSIX-2335
  Remove unneeded args from invoke method
  Update ProductInfo
  Add new test for handling SVG in <object> tag with inner resources
  Add test for check resources released after conversion
  Add processing of calligraphic indic and arabic fonts
  Free resources after reading them
  Add some new min/max width test. Update cmps.
  Fix tests not checking for enough logging messages
  Use ConverterProperties when converting SVG to PDF. RND-1108
  Fixes and tests for Svgs without dimensions
  Add new ignored tests for vertical alignment of inline blocks
  Create tests for FontSelector with different font families
  Fix issues with additional separator in ResourceResolver
  Update cmp files
  Update the reset method of FontProvider.
  Update the default font and the default font-family for an input element.
  Add tests demonstrating background bug for inner inline elements
  Remove unnecessary html file.
  Add a test related to font-family processing.
  Add a new white-space test.
  [RELEASE] 2.1.0-SNAPSHOT -> 2.1.1-SNAPSHOT
  Fix incorrect class passed to logger creation
  Add a new test related to plain text processing
  Minor fix for a constant Javadoc
  Add test