Rework pkg/dev of THT resistors

[ubruhin]

SUMMARY

• Rework THT resistor packages, now generated by librepcb-parts-generator, which brings several improvements:
  • Complete & consistent documentation/legend polygons identical to the THT diode packages.
  • Pad shapes & sizes identical to the THT diode packages.
  • Add package outline & courtyard polygons.
  • Add more footprint variants for more different pitches.
  • Add 3D models.
  • More informative description.
• Improve metadata of THT resistor devices
  • More consistent name with other devices
  • More informative description
  • Approve "no parts" message

DATASHEETS / REFERENCES

Parts generator PR (see there for screenshots): LibrePCB/librepcb-parts-generator#119

OPEN QUESTIONS / UNRESOLVED ISSUES

None

CHECKLIST

• I have read and followed the library conventions¹.
• For packages, I followed IPC7351C (see details in library conventions).
• For modified elements, I bumped their version number².
• I already used the new library elements in a design and verified their correctness (optional).
• I'm the copyright owner of the added content (i.e. the changes are made by myself, not copied/imported from somewhere else).
• I agree to publish all my changes under the CC0 Public Domain License³, allowing everyone to use and modify the content without any restrictions.

¹ Library Conventions: https://docs.librepcb.org/#libraryconventions
² Minor version bump if only metadata was modified (e.g. "0.1" -> "0.1.1"), major version bump if functional changes were made (e.g. "0.1" -> "0.2")
³ CC0 Public Domain License: https://en.wikipedia.org/wiki/CC0