Add H2 database support

[ariel-avila]

to have H2 running in TCP:

download JAR file: https://search.maven.org/remotecontent?filepath=com/h2database/h2/2.3.232/h2-2.3.232.jar

execute: java -cp ./h2-2.3.232.jar org.h2.tools.Server -tcpAllowOthers

if everything ok we will see:

TCP server running at tcp://:(others can connect)
PG server running at pg://:(only local connections)
Web Console server running at http://: (only local connections)

create a file:

• test_db.mv.db

we can connect using JDBC with this url:

• jdbc:h2:tcp://:9092/ path to database / test_db; DATABASE_TO_LOWER=TRUE

idea for .devdbrc

[
{
"name": "H2 Connection",
"type": "h2",
"host": "jdbc:h2:tcp://",
"port": 9092,
"database": "/ path to database / test_db;DATABASE_TO_LOWER=TRUE"
"username": "sa",
"password": ""
}
]