implement reading of rle encoded files
implement reading of hxzip types

* bring over relevant functions from AnalysisSuite
tests for new read.amiramesh hxzip/rle functionality
test for read.zlib
add additional equivalence test for hzip/rle data
test for 8 bit amiramesh data
fix reference to non-existent con variable
Add is.amiramesh and amiratype functions
read/write amira landmarks
Add @family amira to documented functions
fix typos after argument renames
document return type of read.amiralandmarks
tests for amira landmarks functions
Merge branch 'feature/amiramesh'

* feature/amiramesh:
  tests for amira landmarks functions
  document return type of read.amiralandmarks
  fix typos after argument renames
  Add @family amira to documented functions
  read/write amira landmarks
  Add is.amiramesh and amiratype functions
  fix reference to non-existent con variable
  test for 8 bit amiramesh data
  add additional equivalence test for hzip/rle data
  test for read.zlib
  tests for new read.amiramesh hxzip/rle functionality
  implement reading of hxzip types
  implement reading of rle encoded files
Remove stashr-related code in [.neuronlistfh
Add ability to load neuronlistfh from remote filehash object and store
remove all references to stashR in context of neuronlistfh

* also update examples to use Ashley's new RDS based remote fetching implementation
doc fixes
remove code implementing stashR download
only try and use a remote to fetch when one is actually enabled