Metrics Publishing (#1234)

Included the following with core changes to allow labeled metrics for Prometheus exposition format publishing.
* javadoc updates
* remove extra types
* use NBLabeledElement instead of NBNamedElement
* contextualize NBLabeledElement for graphite/metrics
* externalize labeled ScriptContext to API
* add labels to NicerTimer
* remove partial packaging
* more progress on formatting for prom exposition format
* added metrics diagram
* resolve build issues with label params
* resolve build issues with label params
* prometheus export services
* added PromExpoFormat Tests for NBMetricMeter(Counting+Sampling) and NBMetricTimer(Counting)
* added test for Gauge Formatting
* added Gauge Formatting as well as Sampling values (count, stdev ...)
* added sketch for metrics labeling contexts
* add NBLabeledElement in all the places, retool calling paths to use it
* synchronize antlr versions after partial snyk change
* unbreak static initializer block after IntelliJ "fixed" it.
* engine-api - adapt to NBLabeledElement
* adapters-api - adapt to NBLabeledElement
* nb-api - adapt to NBLabeledElement
* engine-core - adapt to NBLabeledElement
* misc-adapters - adapt to NBLabeledElement
* streaming-adapters - adapt to NBLabeledElement
* add missing test
* initial implementation of a prom push reporter
* Resolve build issue with parseGlobalOptions
* replaced with PromPushReporter
* cleanup unused deps
* dependency removal for micrometer
* allow empty labels for tests
* change space.getName to space.getSpaceName
* cleanup poms
* graphite linearization now includes space element
* http adapter should only depend on adapters API
* http space does not create its own metric names
* import cleanups
* improved javadocs
* introduce component concepts

---------

Co-authored-by: Jonathan Shook <jshook@gmail.com>
Co-authored-by: Mike Yaacoub <mike.yaacoub@datastax.com>

engine-docker/src/main/resources/docker/graphite/graphite_mapping.conf

@@ -2,20 +2,30 @@ mappings:
 #- match: 'nosqlbench\\.workloads\\.(.+?)_(.+?)?_(.+?)\\.(.+?)\\.(.+?)_rate'
 #         nosqlbench_workloads_    cqliot_default_schema_tries_stddev{instance="172.17.0.2:9108",job="graphite_import"}
 
-# meter avg rate (named scenarios)
-- match: 'nosqlbench\.workloads\.([0-9a-zA-Z]+)_([0-9a-zA-Z]+)?_([^.]+)\.(.+?)\.m(1|5|15).rate'
-  match_type: regex
-  name: $4
-  labels:
-    workload: $1
-    scenario: $2
-    step: $3
-    alias: "${1}_${2}_${3}"
-    appname: "nosqlbench"
-    usermode: "named_scenario"
-    property: "m${5}_rate"
-    type: avg_rate
-    avg_of: "${5}m"
+
+ # meter avg rate (named scenarios)
+ - match: 'nosqlbench\.workloads\.([0-9a-zA-Z]+)_([0-9a-zA-Z]+)?_([^.]+)\.(.+?)\.m(1|5|15).rate'
+   match_type: regex
+   name: $4
+   labels:
+ # taken from the base file of named scenarios when invoked as
+ # nb5 <workload> <scenario> ...
+     workload: $1
+ # taken from the named scenario when invoked as above
+     scenario: $2
+ # taken from the step name when invoked as above
+     step: $3
+ # The alias (name) of the owning activity
+     alias: "${1}_${2}_${3}"
+     appname: "nosqlbench"
+ # when the user is invoking a named scenario, this should be set
+     usermode: "named_scenario"
+     property: "m${5}_rate"
+ # this should be added to any avg rate metrics
+     type: avg_rate
+ # this should be added to any avg rate metrics
+     avg_of: "${5}m"
+
 
 # meter avg rate (ad hoc alias)
 - match: 'nosqlbench\.workloads\.([0-9a-zA-Z]+)\.(.+?)\.m(1|5|15).rate'