Use upstream fusion library

[jp-bennett]

We had previously just copied our sensor fusion implementation from an upstream library. I've opened a PR to that library, adding a library.properties and library.json, and pointed to that PR hash in our platformio.ini.

This includes a couple minor changes to compile against the latest version of that library.

Assuming the upstream PR is accepted, we can pin to the right version and add renovate support when they make their next release.

[github-actions]

⚡ Try this PR in the Web Flasher

Warning

This is an automated, unreviewed CI test build. Back up your device configuration
before flashing, and only flash devices you are able to recover.

Supported boards built by this PR (24)

	Device	Board	Platform
	Crowpanel Adv 3.5 TFT	elecrow-adv-35-tft	esp32-s3
	Heltec HT62	heltec-ht62-esp32c3-sx1262	esp32-c3
	Heltec Mesh Node 096	heltec-mesh-node-t096	nrf52840
	Heltec Mesh Node T1	heltec-mesh-node-t1	nrf52840
	Heltec Mesh Node T114	heltec-mesh-node-t114	nrf52840
	Heltec V3	heltec-v3	esp32-s3
	Heltec V4	heltec-v4	esp32-s3
	Raspberry Pi Pico	pico	rp2040
	Raspberry Pi Pico W	picow	rp2040
	RAK WisMesh Tag	rak_wismeshtag	nrf52840
	RAK WisBlock 11200	rak11200	esp32
	RAK WisBlock 11310	rak11310	rp2040
	RAK3312	rak3312	esp32-s3
	RAK WisBlock 4631	rak4631	nrf52840
	Seeed Wio Tracker L1	seeed_wio_tracker_L1	nrf52840
	Seeed Xiao NRF52840 Kit	seeed_xiao_nrf52840_kit	nrf52840
	Seeed Xiao ESP32-S3	seeed-xiao-s3	esp32-s3
	Station G2	station-g2	esp32-s3
	Station G3	station-g3	esp32-s3
	LILYGO T-Deck	t-deck-tft	esp32-s3
	LILYGO T-Echo	t-echo	nrf52840
	LILYGO T-Echo Plus	t-echo-plus	nrf52840
	LilyGo T3-C6	tlora-c6	esp32-c6
	Seeed SenseCAP T1000-E	tracker-t1000-e	nrf52840

Build artifacts expire on 2026-07-15. Updated for abd11ad.

[github-actions]

Firmware Size Report

22 targets | vs develop: 21 increased, net +2,216 (+2.2 KB)

Target	Size	vs develop
heltec-ht62-esp32c3-sx1262	2,107,264	📈 +160
heltec-vision-master-e213-inkhud	2,195,520	📈 +144
pico2w	1,197,700	📈 +144
elecrow-adv-35-tft	3,388,048	📈 +128
seeed_xiao_rp2350	746,968	📈 +120

Show 17 more target(s)

Target	Size	vs develop
pico2	748,800	📈 +112
picow	1,221,196	📈 +112
rak11200	1,832,192	📈 +112
rak11310	783,528	📈 +112
station-g3	2,237,232	📈 +112
t-deck-tft	3,782,080	📈 +112
tlora-c6	2,340,848	📈 +112
pico	760,920	📈 +104
seeed_xiao_rp2040	759,120	📈 +104
heltec-v3	2,235,360	📈 +96
heltec-v4	2,255,856	📈 +96
rak3312	2,242,352	📈 +96
seeed-xiao-s3	2,246,352	📈 +80
station-g2	2,246,800	📈 +80
wio-e5	233,012	📈 +48
t-eth-elite	2,461,920	📈 +32
rak3172	180,592	0

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Updated for 939eec3