Complete documentation fo usage with Ignite

[SlowMo24]

Problem Description

Since the switch to Java 17 there are some additional settings required when connecting to Ignite:

--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED
--add-opens=java.management/com.sun.jmx.mbeanserver=ALL-UNNAMED
--add-opens=java.base/sun.reflect.generics.reflectiveObjects=ALL-UNNAMED
--add-opens=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED
--add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED
--add-opens=java.base/java.io=ALL-UNNAMED
--add-opens=java.base/java.nio=ALL-UNNAMED
--add-opens=java.base/java.util=ALL-UNNAMED
--add-opens=java.base/java.lang=ALL-UNNAMED
--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
--add-opens=java.base/java.math=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED
--add-opens=java.sql/java.sql=ALL-UNNAMED
--add-opens=java.base/java.time=ALL-UNNAMED
--add-opens=java.base/java.text=ALL-UNNAMED

In fact, these settings are also necessary when connecting to H2 but using geotools at another point in the project to connect to a Geopackage because geotools circles through all available DB drivers and tries to initialise them (which is probably not best practice?).

Additionally, currently this repository is required:

<repositories>
  <repository>
    <id>HeiGIT main</id>
    <name>Central Repository for OSHDB dependency related artefacts</name>
    <url>https://repo.heigit.org/artifactory/main</url>
  </repository>
</repositories>

Expected Solution

Add that information to the documentation. Also make sure that people who read the documentation on the Helper classes are made aware of this necessity.

[joker234]

This part is only temporary until we can upgrade to the next ignite version. We didn't update this part on purpose, as it will become irrelevant in the future.

<repositories>
  <repository>
    <id>HeiGIT main</id>
    <name>Central Repository for OSHDB dependency related artefacts</name>
    <url>https://repo.heigit.org/artifactory/main</url>
  </repository>
</repositories>