feat(shared): support different loading options for workspace via hawtconfig.json

[tadayosi]

Fix #421

With this fix, now hawtconfig.json is enhanced to accept jmx option with workspace in it like this:

{
  ...
  "jmx": {
    "workspace": ["hawtio", "java.lang/type=Memory", "org.apache.camel", "no.such.domain"]
  },
  ...
}

The workspace accepts either boolean or string[] and if it's set to false you can disable the workspace completely, which is effectively the zero preload mode requested at #421.

[github-actions]

Test Results

    8 files  ±0      8 suites  ±0   50m 1s ⏱️ - 5m 55s
  59 tests ±0    58 ✔️ ±0  1 💤 ±0  0 ❌ ±0 
468 runs  ±0  460 ✔️ ±0  8 💤 ±0  0 ❌ ±0 

Results for commit 59b8a4e. ± Comparison against base commit 862206b.

[hawtio-ci]

Test results

Run attempt: 722
Detailed summary

NAME	TESTS	PASSED ✅	SKIPPED 💤	FAILED ❌	ERRORS 🚫	TIME 🕖
results-quarkus-node(18)-java(11)-firefox	59	58	1	0	0	306.012
results-quarkus-node(18)-java(17)-firefox	59	58	1	0	0	417.007
results-quarkus-node(20)-java(11)-firefox	59	58	1	0	0	441.363
results-quarkus-node(20)-java(17)-firefox	59	58	1	0	0	301.188
results-springboot-node(18)-java(11)-firefox	58	57	1	0	0	437.609
results-springboot-node(18)-java(17)-firefox	58	57	1	0	0	425.451
results-springboot-node(20)-java(11)-firefox	58	57	1	0	0	370.461
results-springboot-node(20)-java(17)-firefox	58	57	1	0	0	302.539