Some major updates including heuristics

- Allow to define heuristics in heuristics.yaml
- Migrate all filetypes from vim beginning with "a"
- Remove enhanced cpp syntax (it was too slow to load)
- Use setf instead of set ft for setting filetype (faster)
- Override native hauristics with au!
- Add globbing of files for packages
- Replace predefined dirs with extra_dirs and ignored_dirs
- Allow to define proper order of packages with topological sort
- Fix powershell detection
- Lint and fix many packages.yaml issues
- etc etd

syntax/abaqus.vim

@@ -0,0 +1,39 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'abaqus') == -1
+
+" Vim syntax file
+" Language:	Abaqus finite element input file (www.hks.com)
+" Maintainer:	Carl Osterwisch <osterwischc@asme.org>
+" Last Change:	2002 Feb 24
+" Remark:	Huge improvement in folding performance--see filetype plugin
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+" Abaqus comment lines
+syn match abaqusComment	"^\*\*.*$"
+
+" Abaqus keyword lines
+syn match abaqusKeywordLine "^\*\h.*" contains=abaqusKeyword,abaqusParameter,abaqusValue display
+syn match abaqusKeyword "^\*\h[^,]*" contained display
+syn match abaqusParameter ",[^,=]\+"lc=1 contained display
+syn match abaqusValue	"=\s*[^,]*"lc=1 contained display
+
+" Illegal syntax
+syn match abaqusBadLine	"^\s\+\*.*" display
+
+" Define the default highlighting.
+" Only when an item doesn't have highlighting yet
+
+" The default methods for highlighting.  Can be overridden later
+hi def link abaqusComment	Comment
+hi def link abaqusKeyword	Statement
+hi def link abaqusParameter	Identifier
+hi def link abaqusValue	Constant
+hi def link abaqusBadLine    Error
+
+
+let b:current_syntax = "abaqus"
+
+endif