Add more comments for methods and classes in word/apiBuilder.js (#336)
Add more comments for methods and classes in word/apiBuilder.js (#336)

* Add more comments for all functions in class Api.
Comments has taken from https://api.onlyoffice.com/docbuilder/textdocumentapi/api
Add space before every function or class for good view
Add space after and before every comment-divider part of functionality

* Add more comments for all methods in ApiChart and ApiDocument classes

* Add more comments for all methods in ApiNumbering, ApiNumberingLevel, ApiGradientStop,
ApiDrawing classes

* Add more comments for all methods in ApiParagraph class

* Add more comments for all methods in ApiParaPr class

* Add more comments for all methods in
ApiTable, ApiStyle, ApiShape, ApiSection classes

* Add more comments for all methods in ApiTableCellPr classes

* Add more comments for all methods in ApiTablePr classes

* Add more comments for all methods in ApiTableRow classes

* Add more comments for all methods in ApiTextPr classe

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