Implement more robust parsing of "raw" idents

Without using the actual lexer to provide token information,
the best we can do is to try the current line (or potentially more)
assuming either that it ends in a raw residue or a normal one. We
then take the longest. The emacs code also follows this strategy
and it all seems to work well.

New tests are added that use FSharp.Data, fetching from NuGet if
required, to test against the original reported bugs.
Added experimental symbol suffort
Merge pull request #259 from rneatherway/issue233-tidy

Implement more robust parsing of "raw" indents
Looks good to me.
Tweak symbol parsing according to language spec
Remove old member tooltip adjustment
Merge pull request #1 from rneatherway/symbolintellisense

Symbolintellisense
Merge pull request #260 from 7sharp9/symbolintellisense

Add symbol support
Remove obsolete build order panel
Remove build order panel from addin config
Remove incorrect hint path
Remove Build order widget designer files
remove ALLOW_LANGUAGE_VERSION_PREFERENCE this hasnt been used for some time
Removed FSharpProjectParameters

The only purpose of this was to supply an alternative item order, we
now only support the build order in the project file as xbuild is used.
Removed FSharpProjectParameter instances

We now use the files list from the CompilerArguments.getSourceFiles
rather than the BuildOrder parameter of the FSharpProjectParameter
CreateProjectParameters now uses a standard ProjectParameters instance
Removed defunct function

This function is no longer used as we dont need to build ordered sets
and intersect.   The secondary functiob was to make the files relative
if the relative parameter was set, although that parameter is always
false in the current code.
Removed FSharpProjectParameters usage

We not just get the source files and wrap then with a simple map -
CompilerArguments.wrapFile
Merge pull request #261 from 7sharp9/remove_old_code

Remove some old code. Works for me.
Pass on configure options to configure.fsx
First cut of merging