Email/query expose emails from shared mailboxes when listing email

[remk]

Simple implementation without filters/sorting/pagination

Why

With the new specification, when using the shares extension I should be able to list my emails and the one from
mailboxes shared with me.

{
  "using": [
    "urn:ietf:params:jmap:core",
    "urn:ietf:params:jmap:mail",
    "urn:apache:james:params:jmap:mail:shares"],
    "methodCalls":
        [[ "Email/query",{
           "accountId": "ue150411c"
         }, "0" ]]
}

Should return :

[[ "Email/query", {
  "accountId": "ue150411c",
  "queryState": "09aa9a075588-780599:0",
  "canCalculateChanges": false,
  "position": 0,
  "ids": [ "Ma783e5cdf5f2deffbc97930a",
    "M9bd17497e2a99cb345fc1d0a", "IdOfAMailFromASharedMailbox", ... ]
}, "0" ]]

HOW

1. Implement a method for Email/query
2. Write dedicated integration tests for it.

Notes

Even without sorting the order of the elements should be stable between two calls to the method

DOD

Write memory integration tests for Email/query with shared mailboxes.