feat: implement v-once

[Jevon617]

In the process of trying to implement v-once with v-for, v-if, and components, I found that using only variables to handle v-once

for createFor, createIf, and createComponent resulted in highly coupled code. Therefore, in this pull request, I attempted to

use the createOnce function in runtime to handle v-once uniformly. However, I'm not sure if this approach is feasible. If it is,

please provide me with some feedback, thanks.

Demo

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Size Report

Bundles

File	Size	Gzip	Brotli
compiler-dom.global.prod.js	80.1 kB	28.2 kB	24.7 kB
compiler-vapor.global.prod.js	52.7 kB (+364 B)	18 kB (+75 B)	16.3 kB (+34 B)
runtime-dom.global.prod.js	94.8 kB	35.7 kB	32.2 kB
runtime-vapor.global.prod.js	45.3 kB (+288 B)	16.9 kB (+77 B)	15.5 kB (+76 B)
vue-vapor.global.prod.js	95.4 kB (+635 B)	33.4 kB (+150 B)	30.2 kB (+170 B)
vue.global.prod.js	152 kB	55 kB	49.2 kB

Usages

Name	Size	Gzip	Brotli
createApp	54.8 kB	21.1 kB	19.2 kB
createSSRApp	58.2 kB	22.4 kB	20.4 kB
defineCustomElement	57.1 kB	21.8 kB	19.9 kB
vapor	45.4 kB (+286 B)	16.9 kB (+84 B)	15.5 kB (+69 B)
overall	68.6 kB	26.1 kB	23.6 kB

[sxzz]

I believe we don't need a createOnce for a block. We can simply pass a once flag to component/for/if.

The current implementation is incorrect compared to runtime-core. The internal state of subcomponents still functions properly.

https://play.vuejs.org/#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

[Jevon617]

Okay, thanks.