change id => Guid
Totally changed script to create DB using variables
Merge branch 'K_Protsenko_branch' of https://github.com/olga-jane/prizm into D_Sidorov

Conflicts:
	db/script/createDb.sql
fixing: drop column pipeId at welt table
Return edited entitys

This reverts commit 37e5c845d85ae0a2c0cf699c3ba53f94c18a2212.

Conflicts:
	src/Domain/Entity/Mill/PipeTest.cs
	src/Domain/Entity/Mill/PipeTestResult.cs
	src/Domain/Entity/Mill/TensileTests.cs
Merge pull request #142 from olga-jane/D_Kulish_1

Return edited entity for conflict resolve
Merge pull request #141 from olga-jane/D_Sidorov

Totally changed script to create DB
Merge pull request #145 from olga-jane/master

Update O Morozova 1