Add db-generation scripts.

db_generate.py to scan an SNMP device (currently nVent or EMX) and generate substitution files.

requested review from @karlvestin and @anderslindh1

This MR is difficult to review both since it is quite large but also because of how individual commits have been arranged. Just as an example, the initial First commit. (common convention is, by the way, to have commit message summaries in imperative mood and without period; this is a pretty nice article) commit seems like it should be a number of different commits (one to add MIB-file, one for utility, etc.), and the .pyc file should be removed from that commit. Several other commits have similar issues (the .gitignore commits should be squashed with the changes they are ignoring files from, Change for better pv names does much more than change PV names, etc.).

It would be much easier to review this if you rearrange the commits, and maybe even submit this as multiple MRs.

added 20 commits

• 3c2b6153...4ff411c5 - 2 commits from branch e3/wrappers:master
• 276a7c8e - First commit.
• dc772ec9 - Add nodefile for complete list for EMX888.
• a5bfdc20 - Edit .gitignore
• e668c207 - Change for better pv names
• 0cbaf5f9 - Add alarm level subst files
• dfa2b6b5 - Update README.md
• e6860027 - Update README.md
• e15ec118 - Update README.md
• 652d40d1 - Correct root nodes in alarm levels subst-files
• c5d8e825 - Remove unwanted comment
• feb03a86 - Add EGU field directly
• 556bd06d - Update .gitignore
• 708dea71 - Add support for decimal digits
• 6be0dab5 - Set correct DEVICE_TYPE for all sensor records
• c36f600a - Minor fix
• 6a71c633 - Combine EMX subst files in one file.
• 9da45f40 - Clean up
• e5f4f134 - Update README.md

Compare with previous version

added 15 commits

• 9a64c4c4 - Add snmpwalks to .gitignore
• 52eb5513 - Add first implementation
• c01eefe8 - Add nodefile for complete list for EMX888.
• 324483b1 - Change for better pv names
• 8051469a - Add alarm level subst files
• 37ac59d8 - Add usage instruction for generation utility
• c7802014 - Correct root nodes in alarm levels subst-files
• 319c7a24 - Remove unwanted comment
• e3fa7bb1 - Add EGU field directly
• 93c01921 - Add support for decimal digits
• 3c1a0a81 - Set correct DEVICE_TYPE for all sensor records
• 728fe6f6 - Minor fix
• 73610e80 - Combine EMX subst files in one file.
• e5a47a17 - Clean up
• aaaf1ad6 - Update README.md

Compare with previous version

closed

Closing. This MR will be added from another branch.