Add KiCad project files, Doc and Software and Hardware folders

- KiCad Project contains:
o Footprints for:
	- HLK-7628N
	- Molxex USB-C 2171790001
o Changes:
	- Add HLK-7628N module
	- Add 3.3V power supply with TPS62A06 buck regulator
	- Add Molex USB-C for 5V/3A power input
	- Add 3x HR911105A RJ45 10/100Mbps plugs for WAN, LAN1 and LAN2
	- Button for CPU reset
	- Various testpoints (3.3V, 5V, JTAG)

Hardware/KiCad/LIB_HLK-7628N/HLK-7628N/PADS/HLK-7628N.p

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+*PADS-LIBRARY-PART-TYPES-V9*
+
+HLK-7628N HLK7628N I ANA 9 1 0 0 0
+TIMESTAMP 2026.06.10.21.48.27
+"Manufacturer_Name" Hi-Link
+"Manufacturer_Part_Number" HLK-7628N
+"Mouser Part Number" 
+"Mouser Price/Stock" 
+"Arrow Part Number" 
+"Arrow Price/Stock" 
+"Description" WIFI Modules RoHS
+"Datasheet Link" https://datasheet.lcsc.com/szlcsc/1907260930_HI-LINK-HLK-7628N_C209920.pdf
+"Geometry.Height" 2.8mm
+GATE 1 59 0
+HLK-7628N
+1 0 U GND_1
+2 0 U 3.3VD_1
+3 0 U 3.3VD_2
+4 0 U GND_2
+5 0 U SPI_CS0
+6 0 U REF_CLK0
+7 0 U PERST_N
+8 0 U WDT_RST_N
+9 0 U EPHY_LED4
+10 0 U EPHY_LED3
+11 0 U EPHY_LED2
+12 0 U EPHY_LED1
+13 0 U EPHY_LED0
+14 0 U PORST_N
+15 0 U UART_TXD1
+16 0 U UART_RXD1
+17 0 U I2S_SDI
+18 0 U I2S_SDO
+19 0 U I2S_WS
+20 0 U I2S_CLK
+21 0 U GND_3
+22 0 U ANT
+23 0 U GND_4
+24 0 U I2C_SCLK
+25 0 U I2C_SD
+26 0 U SPI_CS1
+27 0 U SPI_CLK
+28 0 U SPI_MISO
+29 0 U SPI_MOSI
+30 0 U GPIO0
+31 0 U UART_TXD0
+32 0 U UART_RXD0
+33 0 U WLED_N
+34 0 U MDI_RP_P0
+35 0 U MDI_RN_P0
+36 0 U MDI_TP_P0
+37 0 U MDI_TN_P0
+38 0 U MDI_TP_P1
+39 0 U MDI_TN_P1
+40 0 U MDI_RP_P1
+41 0 U MDI_RN_P1
+42 0 U MDI_RP_P2
+43 0 U MDI_RN_P2
+44 0 U MDI_TP_P2
+45 0 U MDI_TN_P2
+46 0 U MDI_TP_P3
+47 0 U MDI_TN_P3
+48 0 U MDI_RP_P3
+49 0 U MDI_RN_P3
+50 0 U MDI_RP_P4
+51 0 U MDI_RN_P4
+52 0 U MDI_TP_P4
+53 0 U MDI_TN_P4
+54 0 U USB_DP
+55 0 U USB_DM
+56 0 U GND_5
+EP1 0 U EP1
+EP2 0 U EP2
+EP3 0 U EP3
+
+*END*
+*REMARK* SamacSys ECAD Model
+11991615/2082154/2.50/59/4/Integrated Circuit