More accessible solution files
Starting work to fix the tests suite + Java compat work
nuget package restore
Moar tests
Various
Ported tests/MockTokenizer
Partial porting of RandomIndexWriter
Mocks for test/Analysis
test framework changes
Merge branch 'branch_4x' of https://git-wip-us.apache.org/repos/asf/lucenenet into branch_4x
working towards getting Util/Fst/TestBytesStore working without sbyte
Merge branch 'branch_4x' of https://github.com/apache/lucene.net.git into branch_4x
Fixed compile errors in Contrib/Spatial and Contrib/Spatial.NTS after porting.
For the moment, converted all byte[] to sbyte[], just to get the code compiled.