REST API can't run custom Operations and Functions

[d47853]

Sometimes Graph owners have custom operations or operations from different libraries that they want to run through their REST API. In order to add these operations / functions, the jar files will need to be added to the classpath of the REST service, as well as the Accumulo lib/ext directory.

Operations have a further complication in that they need to be added to the REST api using an operation declarations file. See the bottom of this page for an example

[ctas582]

This duplicates #33 and #34.

The way this is supported is for users to build their own container images, containing their custom JARs, using our containers as the base e.g.

FROM gchq/gaffer:1.11.0
COPY <jar> /opt/accumulo/lib/ext

This probably just needs documenting.

[d47853]

Oh yeah of course it does. i'll close this as a duplicate