prettifyAddins 2.0.3

Fixed an issue with the CRAN checks.

prettifyAddins 2.0.2

Fixed an issue with the CRAN checks.

Fixed an issue with the CRAN checks.

Added a YAML prettifier. It obviously acts on YAML files, but also on the YAML metadata of (R)Markdown files.
Added a LaTeX prettifier. It can be used for Sweave files. It requires the command-line utility latexindent, which is included in MikTeX and TeX Live.
Added a Julia prettifier. It requires Julia and the Julia package JuliaFormatter.
Added a Python prettifier. It requires black.
Added another Java prettifier, a JSON prettifier and a Ruby prettifier (function prettify_FCA).
Now the package provides some functions to prettify, which return the pretty code. The addins just call these functions and render the pretty code in RStudio.
Among these functions, there is reindent_PhantomJS. It allows to reindent code for some languages which were supported by a Shiny addin only, whereas this function does not run a Shiny app. These languages are C, C++, Java, Fortran, Julia, Python, SAS, Scala, Shell, and SQL.

Added non-interactive versions of the addins, thanks to the V8 package.
The number of spaces for the indentation is now based on the RStudio preference.
Added a XML/SVG prettifier.
Added a C/C++/Java prettifier, requiring clang-format.

First release.