Package auditd-plugin-clickhouse-lite: Information

- Disable database build test on arches where clickhouse-server is
  not available.

- Added test checking "build_test.log" is written and processed.
- Added test checking "test.log" is written to AuditDataRaw table.
- Added tests that run against a real ClickHouse instance with
  the help of python3-module-clickhouse-test.
- Load init_db.sql statement-by-statement, i. e.: allow to place
  a multi-statement SQL script there.

- Added tests to check the fix.
- Fixed various potential loss of data.
- Fix: Don't panic when no data have been read (EOF).
- CRITICAL FIX: Don't assume the input buffer is always full.
- Fix: Always panic if no end marker (newline) found.