Add Voron 1.8 Fysetc Spider V1.1 in SPI mode; This PR will not work properly without PR #245

[GadgetAngel]

*Add Voron 1.8 Fysetc Spider V1.1 in SPI mode, This PR will not work properly without PR #245 . It contains a link to the information in PR #245

*In Community/Electronics/ added the following:

1. GadgetAngel folder
2. images subfolder

*updated Index.md file in Community/Electronics/ to add "Voron V1 - Fysetc Spider V1.1 Wiring for both SPI and UART modes" (v1_spider_wiring.md) *v1_spider_wiring.md is a parent to v1_spiderv10_spi_wiring.md

*reused three additional files: a. Fysetc_Spider_ProbePort.md b. Fysetc_Spider_RaspberryPi.md c. Fysetc_Spider_Resources_v1.md

*added initial Removal of Jumpers diagram *added initial preparation - Set Jumpers diagram for Fysetc Spider V1.1 in SPI mode *Add description for Voron 1.8 wiring diagram in Fysetc Spider V1.1 in SPI mode *added the heatsink diagram to remind user to ensure that the heatsinks are installed on the stepper motor drivers for: *Added the following MCU with heat sinks in SPI mode *added URL to the Klipper Configuration by Jaeger GitHub Repo for Fysetc Spider V1.1 *informed use that the above config file needs to be changed from UART to SPI *added links to other resources