QFN_packages: fix broken links (where possible)
Quite of few of the "source" URLs don't work anymore. Replace them with:
- updated URLs at the manufacturer,
- archive.org URLs or
- alternative sources.
For the following URLs I found no working alternative:
- http://chip.tomsk.ru/chip/chipdoc.nsf/Package/D8A64DD165C2AAD9472579400024FC41!OpenDocument
- https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMP280-DS001-18.pdf
- https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HQFN016-A-0404XZL_EN.pdf
- https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HSON008-A-0808XXI_EN.pdf
- https://www.invensense.com/products/motion-tracking/9-axis/mpu-9250/
- https://www.marvell.com/documents/bqcwxsoiqfjkcjdjhkvc/
- http://www.chip.tomsk.ru/chip/chipdoc.nsf/Package/C67E729A4D6C883A4725793E004C8739!OpenDocument
For the following URLs I found a possible alternative source but it didn't contain sufficient information about the package dimensions: