As a Developer I want that the password store shared memory segment's name is configurable so that I can build packages and run X-Road software on the same host

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Currently, the password store shared memory segment's name is hard coded which causes problems in case X-Road packages are built, and X-Road software is run on the same host. This may lead to a situation where the password store shared memory segment gets locked and building packages or running the X-Road software fails. If the password store shared memory segment's name was configurable, such a problem wouldn't exist.

The problem applies to X-Road’s native build only - when the build is run on the host machine. Instead, if the build is run inside a Docker container (./build_packages.sh -d), the problem doesn’t exist.

This Knowledge Base article contains more information about the error: https://nordic-institute.atlassian.net/wiki/pages/viewpage.action?pageId=4916422

The JIRA ticket this issue was created from can be found here: https://nordic-institute.atlassian.net/browse/XRDDEV-289

Acceptance criteria:

• [ ] The password store shared memory segment's name is configurable
• [ ] PasswordStoreTest and X-Road software use a different name
• [ ] It is possible to build packages and run X-Road software on the same host