Fiori Tree Views (#816)

* add read only tree table and value help
* rm tree table in catalogservice
* Update cat-service.cds
* i18n and object page
* hana workaround, local messaging and rm virtual
* move hierarchy to fiori
* Update admin-service.cds

* Update common.cds

* fix after moving to fiori

* fix UI filter

* file-based-messaging in hybrid

* review fixes

* Update services.cds

* make bookshop Books fiori.draft.enabled

* add simplest handler for sqlite

* adapt test and link in csvs

* .

* Reverting to human-readable UUIDs :)

* Less obstrusive workaround

* typo

* Update fiori/app/common.cds

* Update fiori/app/common.cds

* Workaround for stupid GUID check in Fiori client

* ...

* Simplified mock support for recursive hierarchies in SQLite :)

* missing comma

* Rudimentary tree support for Genres on SQLite

* ?.

* fixed copy error

* using subselect to determine leafs

* Revert "using subselect to determine leafs"

This reverts commit f01ddaea1f.

* Using scalar subselect for DrillState

* .

---------

Co-authored-by: D070615 <olena.timrova@sap.com>
Co-authored-by: D045778 <johannes.vogel@sap.com>
Co-authored-by: Daniel Hutzel <daniel.hutzel@sap.com>

fiori/db/common.cds

@@ -1,14 +0,0 @@
-namespace sap.capire.bookshop;
-
-using { sap.capire.bookshop } from '@capire/bookstore/srv/mashup';
-
-entity GenreHierarchy : bookshop.Genres {
-  hierarchyLevel : Integer default 0;
-  drillState     : String default 'leaf';
-  parent         : Association to GenreHierarchy;
-  children       : Composition of many GenreHierarchy on children.parent = $self;
-}
-
-extend service CatalogService with {
-  @readonly entity GenreHierarchy as projection on bookshop.GenreHierarchy;
-}

fiori/db/data/sap.capire.bookshop-GenreHierarchy.csv

@@ -1,16 +0,0 @@
-ID;parent_ID;name;hierarchyLevel;drillState
-10;;Fiction;0;expanded
-11;10;Drama;1;leaf
-12;10;Poetry;1;leaf
-13;10;Fantasy;1;leaf
-14;10;Science Fiction;1;leaf
-15;10;Romance;1;leaf
-16;10;Mystery;1;leaf
-17;10;Thriller;1;leaf
-18;10;Dystopia;1;leaf
-20;;Non-Fiction;0;expanded
-19;10;Fairy Tale;1;leaf
-21;20;Biography;1;expanded
-22;21;Autobiography;2;leaf
-23;20;Essay;1;leaf
-24;20;Speech;1;leaf