fix show command & add 'end'/'next' method in stream interface

[DavidBadura]

I can't use foreach in this context because foreach always starts from the beginning. And that even leads to an error since we're working with generators. I fixed the problem by adding the necessary methods to the interface so that the command works as intended.

[github-actions]

Hello 👋

here is the most recent benchmark result:

SimpleSetupBench
================

+----------------------------------------+--------------------+--------------------+-----------------+------------+
|                                        | time (kde mode)                         | memory                       |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| subject                                | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| benchLoad10000Events ()                | 121.272ms (±0.00%) | 122.510ms (±0.00%) | 32.627mb        | 32.625mb   |
| benchSave1Event ()                     | 1.109ms (±0.00%)   | 991.850μs (±0.00%) | 32.627mb        | 32.625mb   |
| benchSave10000Events ()                | 277.798ms (±0.00%) | 280.441ms (±0.00%) | 32.853mb        | 32.851mb   |
| benchSave10000Aggregates ()            | 10.237s (±0.00%)   | 10.350s (±0.00%)   | 32.627mb        | 32.626mb   |
| benchSave10000AggregatesTransaction () | 760.526ms (±0.00%) | 769.605ms (±0.00%) | 32.627mb        | 32.626mb   |
+----------------------------------------+--------------------+--------------------+-----------------+------------+

SplitStreamBench
================

+-------------------------+--------------------+--------------------+-----------------+------------+
|                         | time (kde mode)                         | memory                       |
+-------------------------+--------------------+--------------------+-----------------+------------+
| subject                 | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+-------------------------+--------------------+--------------------+-----------------+------------+
| benchLoad10000Events () | 2.343ms (±0.00%)   | 2.419ms (±0.00%)   | 36.010mb        | 36.009mb   |
| benchSave10000Events () | 314.102ms (±0.00%) | 321.893ms (±0.00%) | 36.277mb        | 36.277mb   |
+-------------------------+--------------------+--------------------+-----------------+------------+

SyncProjectionistBench
======================

+-------------------------+--------------------+--------------------+-----------------+------------+
|                         | time (kde mode)                         | memory                       |
+-------------------------+--------------------+--------------------+-----------------+------------+
| subject                 | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+-------------------------+--------------------+--------------------+-----------------+------------+
| benchSave1Event ()      | 1.331ms (±0.00%)   | 1.426ms (±0.00%)   | 8.128mb         | 8.126mb    |
| benchSave10000Events () | 437.454ms (±0.00%) | 446.972ms (±0.00%) | 33.459mb        | 33.458mb   |
+-------------------------+--------------------+--------------------+-----------------+------------+

SnapshotsBench
==============

+----------------------------------------+--------------------+--------------------+-----------------+------------+
|                                        | time (kde mode)                         | memory                       |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| subject                                | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| benchLoad10000EventsMissingSnapshot () | 126.846ms (±0.00%) | 122.099ms (±0.00%) | 32.648mb        | 32.646mb   |
| benchLoad10000Events ()                | 198.900μs (±0.00%) | 213.800μs (±0.00%) | 32.648mb        | 32.646mb   |
+----------------------------------------+--------------------+--------------------+-----------------+------------+

This comment gets update everytime a new commit comes in!