Add information to logs on used memory during analysis

[saberduck]

We should augment the logs with information about memory usage during the analysis.

We need to investigate available APIs

• https://nodejs.org/api/process.html#process_process_memoryusage
• https://nodejs.org/api/v8.html#v8_v8_getheapstatistics

We could observe heap after each file and print summary at the end of analysis for JS/TS sensor.

TBD if something is needed for CSS sensor

[ilia-kebets-sonarsource]

as discussed with @saberduck, we should do a dedicated sprint for this one, so I'm removing it from the hardening.

[yassin-kammoun-sonarsource]

Completed with:

• Report heap usage status with sonar.javascript.node.debugMemory #4294
• Improve reporting of memory size in docker env #4274
• Improve memory configuration message when running in Docker #4269
• Log memory configuration when bridge starts #4263