choo components (#639)

* add components

* example: componentize header

* fix choo SSR

* example: componentize footer

* example: fix footer

* update component cache asserts

* componentize todos

* reorder example dir

* fix example tests

* fix dep check test

* Add garbage collection of unused components

* Apply args when calling identity

* update to new component preview

* update nanocomponent

* fix cache err name

* remove static methods from example

* restore app.emit() function

* public API tests

* offset component cache iteration by 2

* whitelist contents of component folder (#643)

* allow lru number arg

* fix lint typo

package.json

@@ -9,12 +9,14 @@
     "html/index.js",
     "html/raw.js",
     "html/index.d.ts",
+    "component/cache.js",
+    "component/index.js",
     "dist",
     "example"
   ],
   "scripts": {
     "build": "mkdir -p dist/ && browserify index -p bundle-collapser/plugin > dist/bundle.js && browserify index -p tinyify > dist/bundle.min.js && cat dist/bundle.min.js | gzip --best --stdout | wc -c | pretty-bytes",
-    "deps": "dependency-check --entry ./html/index.js . && dependency-check . --extra --no-dev --entry ./html/index.js",
+    "deps": "dependency-check --entry ./html/index.js . && dependency-check . --extra --no-dev --entry ./html/index.js --entry ./component/index.js",
     "inspect": "browserify --full-paths index -g unassertify -g uglifyify | discify --open",
     "prepublishOnly": "npm run build",
     "start": "bankai start example",
@@ -34,8 +36,10 @@
     "bel": "^5.1.3",
     "document-ready": "^2.0.1",
     "nanobus": "^4.2.0",
+    "nanocomponent": "^6.5.0",
     "nanohref": "^3.0.0",
     "nanolocation": "^1.0.0",
+    "nanolru": "^1.0.0",
     "nanomorph": "^5.1.2",
     "nanoquery": "^1.1.0",
     "nanoraf": "^3.0.0",