SSH key pairs are very buggy

### problem

Having the ssh key pairs being identified by their name leads to a lot of weird issues.

1. The key pair validator allows commas(and other special characters like an ampersand) in the key pair name.
2. The `deployVirtualMachine` command `keypairs` parameter isn't escaped, this breaks on key pairs containing commas.
4. The `deployVirtualMachine` command `keypair` works with commas
5. The UI breaks when a key pair contains commas, below is a single key containing a bunch of commas
6. If the API consumer assumes the key pair name is safe and validated by cloudstack it *cloud* lead to a command injection(but it requires a lot of wrong assumptions)

### versions

CloudStack 4.22.0.0

### The steps to reproduce the bug

You can use the UI to observe most of the issues:
1. Create a new key pair with a comma in the name eg. `test, test`
2. Try creating a new instance with said key

### What to do about it?

1. Add a new `keypairId` array parameter to all the endpoint which access key pair name.
2. Mark the `keypair` and `keypairs` parameters deprecated.

首先跟踪接受或访问密钥对名称的 API 端点，然后通过 UI 和 deployVirtualMachine 命令复现包含逗号的密钥对。识别所有受影响的端点及其现有的 keypair/keypairs 参数。完成的标准是：所需的 keypairId 数组参数可用，并且基于名称的参数被标记为 deprecated，同时不破坏文档中描述的工作流。

由索引模型根据 Issue 内容生成。