Merge branch 'ps/doc-more-c-coding-guidelines'

Some project conventions have been added to CodingGuidelines.

* ps/doc-more-c-coding-guidelines:
  Documentation: consistently use spaces inside initializers
  Documentation: document idiomatic function names
  Documentation: document naming schema for structs and their functions
  Documentation: clarify indentation style for C preprocessor directives
  clang-format: fix indentation width for preprocessor directives

diff --cc Documentation/CodingGuidelines
Simple merge