Changed ValueFromPipepine to ValueFromPipeline

As per Issue #2 the values of the parameters within test-folder.ps1 and ProjectItemTypespsm1 were updated.
Merge pull request #3 from gep13/Issue-2

Changed ValueFromPipepine to ValueFromPipeline
fixed functions for finding and mounting project items and code; fixed pipeline semantics in many functions; added confirmation and force to new-solutionmodule when module already exists
updated documentation, renamed find-project* scripts to get-project*
updated README.md; added positional and alias attributes to several functions