ISIS-832: moving objectstore-jdo into core (have not changed artifact Ids)

... just moved files and consolidated the parent pom.xml's.
ISIS-832: deleting components/objectstore/jdo
ISIS-832: moving viewer-restfulobjects into core (have not changed artifact Ids)

... just moved files and consolidated the parent pom.xml's.
ISIS-832: ISIS-832: moving security-shiro into core (have not changed artifact Ids)

... just moved files and consolidated the parent pom.xml's.

Have also deleted components/viewer/restfulobjects directory.
ISIS-832: adding prefixes for modules moved to core

eg jdo-applib renamed to objectstore-jdo-applib.
ISIS-832: mothballing components

* component/objectstore/nosql
* component/objectstore/xml
* component/security/file
* component/progmodel/groovy
* component/viewer/dnd
* component/viewer/junit

also: moved mothballed/bdd to mothballed/component/viewer/bdd
ISIS-832: deleting old src/site files (defunct since now using ASF CMS).
ISIS-832: mothballing example/application/quickstart_scimpi_nosql.
ISIS-832: changing maven artifactIds for the modules moved into core.

o.a.i.security:isis-security-shiro:1.5.0   -> o.a.i.core:isis-core-security-shiro:1.6.0

o.a.i.objectstore:isis-objectstore-jdo-applib:1.5.0   -> o.a.i.core:isis-core-objectstore-jdo-applib:1.6.0
o.a.i.objectstore:isis-objectstore-jdo-datanucleus:1.5.0   -> o.a.i.core:isis-core-objectstore-jdo-datanucleus:1.6.0
o.a.i.objectstore:isis-objectstore-jdo-metamodel:1.5.0   -> o.a.i.core:isis-core-objectstore-jdo-metamodel:1.6.0

o.a.i.viewer:isis-viewer-restfulobjects-applib:2.3.0 -> o.a.i.core:isis-core-viewer-restfulobjects-applib:1.6.0
o.a.i.viewer:isis-viewer-restfulobjects-rendering:2.3.0 -> o.a.i.core:isis-core-viewer-restfulobjects-rendering:1.6.0
o.a.i.viewer:isis-viewer-restfulobjects-server:2.3.0 -> o.a.i.core:isis-core-viewer-restfulobjects-server:1.6.0
o.a.i.viewer::isis-viewer-restfulobjects-tck:2.3.0 -> o.a.i.core:isis-core-viewer-restfulobjects-tck:1.6.0

also requires delete of dependencies (scope=import) in root pom.xml for apps:
  o.a.i.security:isis-security-shiro
  o.a.i.objectstore:isis-objectstore-jdo
  o.a.i.viewer:isis-viewer-restfulobjects

this is because these modules no longer exist, the modules instead in o.a.i.core:isis, already scope=import'ed.