Use Prettier for code formatting

[nechaido]

We need to open a PR in each metarhia repo, that will add prettier to them and reformat code accordingly.

This can be done by following its tutorial https://prettier.io/docs/en/install.html.

[JuliaGerasymenko]

Which repositories should I change?

[belochub]

List of repositories extracted from https://github.com/metarhia/Metarhia/blob/master/doc/maintainers.md:

• https://github.com/metarhia/Metarhia
• https://github.com/metarhia/common
• https://github.com/metarhia/concolor
• https://github.com/metarhia/do
• https://github.com/metarhia/eslint-config-metarhia
• https://github.com/metarhia/eslint-plugin-impress
• https://github.com/metarhia/filestorage
• https://github.com/metarhia/globalstorage
• https://github.com/metarhia/impress
• https://github.com/metarhia/impress-cli
• https://github.com/metarhia/jstp
• https://github.com/metarhia/mdsf
• https://github.com/metarhia/metacom
• https://github.com/metarhia/metadoc
• https://github.com/metarhia/metalog
• https://github.com/metarhia/metaschema
• https://github.com/metarhia/metastreams
• https://github.com/metarhia/metasync
• https://github.com/metarhia/metatests
• https://github.com/metarhia/protocol
• https://github.com/metarhia/remark-preset-lint-metarhia
• https://github.com/metarhia/sandboxed-fs
• https://github.com/metarhia/tickplate
• https://github.com/metarhia/tools

[JuliaGerasymenko]

@belochub I haven't got an access to such repositories as : mdsf, metacom, tickplate, remark-preset-lint-metarhia, protocol, eslint-config-metarhia