Integrate flowershow packages (#923)

* [packages][m]: mv @flowershow/core package here

* [packages/core][xs]: rename to @portaljs/core

* [package.json][xs]: setup npm workspaces

* [packages/core][xs]:replace deprecated rollup executor

* [core/package.json][s]: fix mermaid versions

* [core/tsconfig][xs]: rm extends

* [core/jest.config][xs]: rm coverageDirectory

* [core/package.json][xs]: install core-js

* [packages.json][s]:use same version for all nrwl packages

* [core/.eslintrc][xs]: adjust ignorePatterns

* [core/project.json][xs]: rm publish targets

* [packages][m]: mv @flowershow/remark-wiki-link here

* [packages][m]: mv @flowershow/remark-wiki-link here

* [packages][m]: mv @flowershow/remark-embed here

* [remark-callouts/project.json][xs]: adjst test pattern

* [package.json][s]: install missing deps

* [remark-callouts][xs]: adjst fields in package.json

* [remark-callouts][s]: rm pubish targets and adjst build executor

* [remark-embed/jest.config][xs]: rm unknown option coverageDirectory

* [remark-embed][xs]: rm publish targets

* [remark-embed][s]: rename to @portaljs/remark-embed

* [remark-wiki-link/eslintrc][xs]:adjst ignorePatterns

* [package.json][xs]: install missing deps

* [remark-wiki-link/test][xs]:specify format

- also temporarily force any type on htmlExtension

* [remark-wiki-link/README][xs]: replace @flowershow with @portaljs

* [remark-wiki-link][xs]:rm old changelog

* [remark-wiki-link][xs]: adjst package.json

* [remark-wiki-link/project.json][xs]: rm publish targets

* [core][s]: rm old changelog

* [core/README][xs]:correct scope name

* [remark-callouts/README][xs]: add @portaljs to pckg name

* [remark-embed/README][xs]: add @portaljs to pckg name

* [package-lock.json][xs]: refresh after rebasing on main

packages/remark-callouts/package.json

@@ -0,0 +1,41 @@
+{
+  "name": "@portaljs/remark-callouts",
+  "version": "1.0.0",
+  "description": "Remark plugin to add support for blockquote-based admonitions/callouts",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/datopian/portaljs.git",
+    "directory": "packages/remark-callouts"
+  },
+  "keywords": [
+    "remark",
+    "remark-plugin",
+    "markdown",
+    "admonitions",
+    "callouts",
+    "obsidian"
+  ],
+  "author": "Rufus Pollock",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/datopian/portaljs/issues"
+  },
+  "homepage": "https://github.com/datopian/portaljs#readme",
+  "publishConfig": {
+    "access": "public"
+  },
+  "dependencies": {
+    "mdast-util-from-markdown": "^1.2.0",
+    "svg-parser": "^2.0.4",
+    "unist-util-visit": "^4.1.0"
+  },
+  "type": "module",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js",
+      "require": "./dist/index.cjs"
+    },
+    "./styles.css": "./styles.css"
+  }
+}