Develop a criteria for work and difficulty estimation (by @KOLANICH)

[mikaelbr]

Orignally by @KOLANICH at open-source-ideas/ideas#55

For now the issues in this repo are marked with Little work, Medium work, Much work and Beginner, Intermediate, Advanced labels.

But what is Much work ? Is developing an app in the way "take existing libraries, make them do their tasks and return the results, compare the results and show them to user" really so much work for an advanced engineer? I guess we need a more objective criteria of amount and complexity of the work, taking in account

• existing libraries
• libraries to be created
• development and reverse-engineering tools and their capabilities
• amount of research and requirements to the researchers (I mean here not level, but domain and specialization, if the work requires expert knowlege in different domains, it is more complex and may require more people (with competencies in differrent domains) to be finished).