Export of action items still todo.

These will be needed by the state_to_json API call.

Also pull trivial adaptors for keyboard an context into the internal 
data structres header files.

Move classes to separate compilation units so the can be used in the 
state object

This is a temporary set of build scripts for the keyboard processor 
work, until a cross platform build system is settled on for the whole 
keyman project.

Move VKEY action types to end of enumeration as these will go away
Kill the km_kb_state_flag as these are un-needed.
Add the dump state json function for debug and ide.
Turn engine attrs into a struct instead of an array.

And a couple of minior tidy ups for the union data structures and fixes 
to bring implementation and docs into alignment.

Add json export function

Also minor constness fixes.

Header's and start of null keyboard processor for testing.

[linux] Linux kmp installer

[iOS] Added entries to plist to say that Keyman is not document-based

for all scripts
add option -v for info messages
-vv for debug messages

remove creation of test ldml output file

if readmeFile not in options then don't use readme.htm even
  if it is there

but continue to un/install the kmp
ibus on stock bionic needs more investigation

document in README.repo to use autogen.sh to regenerate
change build.sh to use autoreconf -if
add the generated files to .gitignore

This should prevent warning from AppStore

[Mac] #1069 - Added SIL logo to DMG image & About box. Updated copyright

[Developer] Refactor merge keyboard info

* Remove unneeded line
* Update history.md

doc in README.md
update README.md with new scripts names and add doc for
km-package-get and km-kvk2ldml

remove generated man pages, regenerate in 'make deb'

doc python3-setuptools requirement for keyman-config
removing commented code
fix missed doc reference to view_installed
add TODO about website changes in downloadkeyboard
move linux/osk to linux/experiments/osk

* Consolidate `AddJSFile` into `LoadJSFile`
* Cleanup unnecessary vars, indentation
* Add TODO on adding 'android' and 'ios' platformSupports for the time being
* Revert .kxx in `utilfiletypes.pas`

[iOS] #1069 - Added Keyman & SIL logos & Copyright to offline info page