fix: remind to build before install

[lwshang]

Description

SDK-971

When installing a canister, if the canister is not built yet, a more informative message will be shown:

"The canister must be built before install. Please run `dfx build`."

The original request was to allow directly installing custom canisters which specify wasm path. However, for such custom canisters, dfx may do some necessary post-processing as a part of dfx build and install the processed wasm later. Directly installing the exact wasm specified in dfx.json will be an inconsistent behavior.

Also, from the source code perspective. The canister type specific information including whether the wasm field is specified are not available to the install_canister function. We'll have to expose too much specific information at this level to allow a special rule here.

Therefore, I improve the install_canister function by giving better error message in such case.
Before this change, users may got confused that dfx reports "Fail to read the wasm file" even though they specified it in dfx.json. The new error message is more helpful that it provides the command to fix the issue.

How Has This Been Tested?

e2e

Checklist:

• The title of this PR complies with Conventional Commits.
• I have edited the CHANGELOG accordingly.
• I have made corresponding changes to the documentation.