feat(net): Add NAPT examples

[me-no-dev]

Adds examples of how to use NAPT to share internet through WiFi SoftAP

[github-actions]

	Messages
📖	You might consider squashing your 4 commits (simplifying branch history).

👋 Hello me-no-dev, we appreciate your contribution to this project!

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Generated by 🚫 dangerJS against 2786df3

[github-actions]

Test Results

 56 files   -  83   56 suites   - 83   4m 56s ⏱️ - 1h 37m 33s
 21 tests  -   9   21 ✅  -   9  0 💤 ±0  0 ❌ ±0 
135 runs   - 168  135 ✅  - 168  0 💤 ±0  0 ❌ ±0 

Results for commit 2786df3. ± Comparison against base commit 6244d9a.

This pull request removes 9 tests.

performance.coremark.test_coremark ‑ test_coremark
performance.fibonacci.test_fibonacci ‑ test_fibonacci
performance.psramspeed.test_psramspeed ‑ test_psramspeed
performance.ramspeed.test_ramspeed ‑ test_ramspeed
performance.superpi.test_superpi ‑ test_superpi
test_touch_errors
test_touch_interrtupt
test_touch_read
validation.periman.test_periman ‑ test_periman

♻️ This comment has been updated with latest results.

[github-actions]

Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

Memory	FLASH [bytes]		FLASH [%]		RAM [bytes]		RAM [%]
Target	DEC	INC	DEC	INC	DEC	INC	DEC	INC
ESP32S3	0	0	0.00	0.00	0	0	0.00	0.00
ESP32S2	0	0	0.00	0.00	0	0	0.00	0.00
ESP32C3	0	0	0.00	0.00	0	0	0.00	0.00
ESP32C6	0	0	0.00	0.00	0	0	0.00	0.00
ESP32	0	0	0.00	0.00	0	0	0.00	0.00

Click to expand the detailed deltas report [usage change in BYTES]

Target	ESP32S3		ESP32S2		ESP32C3		ESP32C6		ESP32
Example	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM
Ethernet/examples/ETH_WIFI_BRIDGE	-	-	-	-	-	-	-	-	-	-
PPP/examples/PPP_WIFI_BRIDGE	-	-	-	-	-	-	-	-	-	-
WiFi/examples/WiFiExtender	-	-	-	-	-	-	-	-	-	-