calculation flow improvement part 4

--HG--
rename : document/src/main/scala/org/encalmo/document/Resolve.scala => document/src/main/scala/org/encalmo/document/Expand.scala
rename : structures/src/main/scala/org/encalmo/structures/CalculationDocument.scala => structures/src/main/scala/org/encalmo/structures/Worksheet.scala
rename : structures/src/main/scala/org/encalmo/structures/eurocode/composite/CompositeSlabCalculationDocument.scala => structures/src/main/scala/org/encalmo/structures/eurocode/composite/CompositeSlabWorksheet.scala
rename : structures/src/main/scala/org/encalmo/structures/eurocode/concrete/DomeCalculationDocument.scala => structures/src/main/scala/org/encalmo/structures/eurocode/concrete/DomeWorksheet.scala
rename : structures/src/main/scala/org/encalmo/structures/miscellaneous/TRBCalculationDocument.scala => structures/src/main/scala/org/encalmo/structures/miscellaneous/TRBWorksheet.scala