update repo/package names

.piopm

 {
   "type": "platform",
-  "name": "teensy-gcc",
+  "name": "teensy-gcc10",
   "version": "0.1.0",
   "spec": {
-    "owner": "skepto",
+    "owner": "visus",
     "id": 8021,
-    "name": "teensy-gcc",
+    "name": "teensy-gcc10",
     "requirements": null,
     "url": null
   }

builder/frameworks/arduino.py

 env = DefaultEnvironment()
 platform = env.PioPlatform()
 
-FRAMEWORK_DIR = platform.get_package_dir("framework-arduinoteensy-cxx17")
-FRAMEWORK_VERSION = platform.get_package_version("framework-arduinoteensy-cxx17")
+FRAMEWORK_DIR = platform.get_package_dir("framework-arduinoteensy-cxx20")
+FRAMEWORK_VERSION = platform.get_package_version("framework-arduinoteensy-cxx20")
 BUILD_CORE = env.BoardConfig().get("build.core")
 
 assert isdir(FRAMEWORK_DIR)

platform.json

 {
-  "name": "teensy-gcc",
+  "name": "teensy-gcc10",
   "title": "Teensy",
   "description": "Teensy is a complete USB-based microcontroller development system, in a very small footprint, capable of implementing many types of projects. All programming is done via the USB port. No special programmer is needed, only a standard USB cable and a PC or Macintosh with a USB port.",
   "homepage": "https://www.pjrc.com/teensy",
   "license": "Apache-2.0",
   "keywords": [
-      "dev-platform",
-      "ARM",
-      "AVR",
-      "Cortex-M",
-      "NXP Semiconductors",
-      "Microchip"
+    "dev-platform",
+    "ARM",
+    "AVR",
+    "Cortex-M",
+    "NXP Semiconductors",
+    "Microchip"
   ],
   "engines": {
     "platformio": "^5"
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/platformio/platform-teensy.git"
+    "url": "https://github.com/visus/platform-teensy-gcc10.git"
   },
   "version": "4.17.0",
   "frameworks": {
     "arduino": {
-      "package": "framework-arduinoteensy-cxx17",
+      "package": "framework-arduinoteensy-cxx20",
       "script": "builder/frameworks/arduino.py"
     },
     "mbed": {
     "toolchain-gcc-arm-embedded": {
       "type": "toolchain",
       "optional": false,
-      "owner": "skepto",
+      "owner": "visus",
       "version": "~0.1.0"
     },
-    "framework-arduinoteensy-cxx17": {
+    "framework-arduinoteensy-cxx20": {
       "type": "framework",
       "optional": true,
-      "owner": "skepto",
+      "owner": "visus",
       "version": "~0.1.0"
     },
     "framework-mbed": {

platform.py

 from platformio.managers.platform import PlatformBase
 
 
-class TeensygccPlatform(PlatformBase):
+class Teensygcc10Platform(PlatformBase):
 
     def configure_default_packages(self, variables, targets):
         if variables.get("board"):