rename metadata hydrator into stack hydrator

[DavidBadura]

Preparation for backporting to 1.x

[github-actions]

Hello 👋

here is the most recent benchmark result:

HydratorWithLazyBench
=====================

+------------------------------------------+--------------------+--------------------+-----------------+------------+
|                                          | time (kde mode)                         | memory                       |
+------------------------------------------+--------------------+--------------------+-----------------+------------+
| subject                                  | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+------------------------------------------+--------------------+--------------------+-----------------+------------+
| benchHydrate1Object ()                   | 0.800μs (±0.00%)   | 1.000μs (±0.00%)   | 2.770mb         | 3.251mb    |
| benchHydrate1ObjectTriggerInit ()        | 77.200μs (±0.00%)  | 4.400μs (±0.00%)   | 2.770mb         | 3.251mb    |
| benchHydrate1000Objects ()               | 443.667μs (±0.00%) | 433.333μs (±0.00%) | 2.805mb         | 3.267mb    |
| benchHydrate1000ObjectsTriggerInit ()    | 3.137ms (±0.00%)   | 3.136ms (±0.00%)   | 2.843mb         | 2.843mb    |
| benchHydrate1000000Objects ()            | 292.663ms (±0.00%) | 302.775ms (±0.00%) | 2.805mb         | 2.805mb    |
| benchHydrate1000000ObjectsTriggerInit () | 2.054s (±0.00%)    | 2.018s (±0.00%)    | 2.843mb         | 2.843mb    |
+------------------------------------------+--------------------+--------------------+-----------------+------------+

HydratorBench
=============

+-------------------------------+--------------------+--------------------+-----------------+------------+
|                               | time (kde mode)                         | memory                       |
+-------------------------------+--------------------+--------------------+-----------------+------------+
| subject                       | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+-------------------------------+--------------------+--------------------+-----------------+------------+
| benchHydrate1Object ()        | 105.600μs (±0.00%) | 102.600μs (±0.00%) | 2.770mb         | 2.770mb    |
| benchExtract1Object ()        | 4.000μs (±0.00%)   | 3.800μs (±0.00%)   | 2.770mb         | 2.770mb    |
| benchHydrate1000Objects ()    | 2.328ms (±0.00%)   | 2.341ms (±0.00%)   | 2.868mb         | 2.868mb    |
| benchExtract1000Objects ()    | 2.305ms (±0.00%)   | 2.279ms (±0.00%)   | 2.858mb         | 2.858mb    |
| benchHydrate1000000Objects () | 1.264s (±0.00%)    | 1.263s (±0.00%)    | 2.868mb         | 2.868mb    |
| benchExtract1000000Objects () | 1.436s (±0.00%)    | 1.499s (±0.00%)    | 2.858mb         | 2.858mb    |
+-------------------------------+--------------------+--------------------+-----------------+------------+

HydratorWithCryptographyBench
=============================

+-------------------------------+-------------------+-------------------+-----------------+------------+
|                               | time (kde mode)                       | memory                       |
+-------------------------------+-------------------+-------------------+-----------------+------------+
| subject                       | Tag: <current>    | Tag: base         | Tag: <current>  | Tag: base  |
+-------------------------------+-------------------+-------------------+-----------------+------------+
| benchHydrate1Object ()        | 7.000μs (±0.00%)  | 7.200μs (±0.00%)  | 2.787mb         | 2.787mb    |
| benchExtract1Object ()        | 11.000μs (±0.00%) | 12.200μs (±0.00%) | 2.787mb         | 2.787mb    |
| benchHydrate1000Objects ()    | 4.128ms (±0.00%)  | 4.100ms (±0.00%)  | 3.081mb         | 3.081mb    |
| benchExtract1000Objects ()    | 6.304ms (±0.00%)  | 6.393ms (±0.00%)  | 3.117mb         | 3.117mb    |
| benchHydrate1000000Objects () | 2.207s (±0.00%)   | 2.234s (±0.00%)   | 3.082mb         | 3.082mb    |
| benchExtract1000000Objects () | 4.346s (±0.00%)   | 4.294s (±0.00%)   | 3.117mb         | 3.117mb    |
+-------------------------------+-------------------+-------------------+-----------------+------------+

This comment gets update everytime a new commit comes in!