#### What type of PR is this?
/kind feature
/area core
/milestone 2.7.x
#### What this PR does / why we need it:
Refactor configuration properties to configure caching with separate names, so that we can enable / disable cache with name.
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/4144
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### What type of PR is this?
/kind feature
/area core
#### What this PR does / why we need it:
This PR adds dependency [spring-boot-starter-cache](https://docs.spring.io/spring-boot/docs/current/reference/html/io.html#io.caching) as cache framework and [caffeine](https://github.com/ben-manes/caffeine/wiki) as cache implementation to cache template rendering result.
By default, we disable the cache feature. If you want to enable it, please try to configure properties like this:
```yaml
halo:
cache:
disabled: false
```
#### Which issue(s) this PR fixes:
Fixes#2827
#### Special notes for your reviewer:
1. Start Halo
2. Browse any page twice
3. See the difference in request times
#### Does this PR introduce a user-facing change?
```release-note
支持模板渲染结果缓存
```
John Niang