Implement the sdk/metric/view package

[MrAlias]

Blocked by #2816
Blocked by #2817
Blocked by #2813

• Add view match option functions
  • func MatchInstrumentName(name string) Option
  • func MatchInstrumentNameRegexp(re *regexp.Regexp) Option
  • func MatchInstrumentKind(k sdkinstrument.Kind) Option
  • func MatchNumberKind(k number.Kind) Option
  • func MatchInstrumentationLibrary(lib instrumentation.Library) Option
• Add instrument view option functions
  • func WithKeys(keys ...attribute.Key) Option
  • func WithName(name string) Option
  • func WithDescription(desc string) Option
  • func WithAggregation(kind aggregation.Kind) Option
  • func WithTemporality(tempo aggregation.Temporality) Option
  • func WithAggregatorConfig(acfg aggregator.Config) Option
• Add getter functions for the Config type
  • func (Config) Name() string
  • func (Config) Keys() []attribute.Key
  • func (Config) Description() string
  • func (Config) Aggregation() aggregation.Kind
  • func (Config) Temporality() aggregation.Temporality
  • func (Config) AggregatorConfig() aggregator.Config
• Add helper functions for the `Config type
  • func (Config) IsSingleInstrument() bool
  • func (Config) HasName() bool
  • func (Config) Matches(lib instrumentation.Library, desc sdkinstrument.Descriptor) bool

[MrAlias]

Only remaining task is to allow aggregation configuration. This has been split to its own issue: #2950