JSX runtime (part 2 of 3) - more formal rendering logic for both classic and new jsx runtimes (#3947)

* rework jsx helpers for both new and old runtimes

* implement both new and old render patterns for classic and jsx-runtimes

* Change files

* move package README.md files to be next to the source code

* update documentation

* Change files

* prettier format updates to documentation

* tweak documentation just a bit

Author: JasonVMo

change/@fluentui-react-native-framework-base-5fdded4e-da99-42ac-a660-501e4aa4e831.json

@@ -0,0 +1,7 @@
+{
+  "type": "minor",
+  "comment": "implement both new and old render patterns for classic and jsx-runtimes",
+  "packageName": "@fluentui-react-native/framework-base",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

change/@fluentui-react-native-immutable-merge-fe963967-3c5d-44ee-b7b6-bd67720856d6.json

@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "update documentation",
+  "packageName": "@fluentui-react-native/immutable-merge",
+  "email": "[email protected]",
+  "dependentChangeType": "none"
+}

change/@fluentui-react-native-memo-cache-f82fa9b0-24fa-493e-90bf-23f4592908f3.json

@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "update documentation",
+  "packageName": "@fluentui-react-native/memo-cache",
+  "email": "[email protected]",
+  "dependentChangeType": "none"
+}

change/@fluentui-react-native-merge-props-88bde9a7-67b6-40ac-9e3f-cf9e3e643597.json

@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "update documentation",
+  "packageName": "@fluentui-react-native/merge-props",
+  "email": "[email protected]",
+  "dependentChangeType": "none"
+}

change/@fluentui-react-native-tester-e3900adc-3730-4ef8-8279-3c0f08e2c8b5.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "rework jsx helpers for both new and old runtimes",
+  "packageName": "@fluentui-react-native/tester",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}