BDE tools does not install pkg-config meta-data nor cmake meta-data

When I run:
```
eval $(bde_build_env)
bbs_build configure --prefix /home/my/bde
bbs_build build
bbs_build install
```
Only header files and library archives are installed. No pkg-config meta-data nor cmake meta-data is installed. I expect that simple commands to build and install what I've configured result in all the necessary artifacts being built and installed. While I'm sure there are exceptions, most open-source software I've built simply needs:

```
./configure
make
make install
```

I consider this a bug because the BDE build system seems unnecessarily unusual, and should try to align with open source expectations.

**Environment:**
- Darwin G7WH7WFVKV 21.6.0 Darwin Kernel Version 21.6.0