Add initial Codeowners file

CODEOWNERS

@@ -9,11 +9,52 @@
 #
 #
 # Learn about CODEOWNERS file format:
-#  https://help.github.com/en/articles/about-code-owners
+# https://help.github.com/en/articles/about-code-owners
 #
+# NOTE: Lines should be entered in the following format:
+# <component_path_relative_from_project_root>/<min_1_space><owner_1><space><owner_2><space>..<owner_n>
+# instrumentation/net/http/otelhttp/         @open-telemetry/collector-go-approvers @madvikinggod @mralias
+# Path separator and minimum of 1 space between component path and owners is
+# important for validation steps
+# 
 
-* @jmacd @MrAlias @Aneurysm9 @evantorrie @XSAM @dashpole @MadVikingGod @pellared @hanyuancheung @dmathieu
+* @open-telemetry/go-approvers
 
 CODEOWNERS @MrAlias @Aneurysm9 @MadVikingGod
 
-instrgen/                                  @open-telemetry/go-approvers @MrAlias @pdelewski
+detectors/aws/                                                          @open-telemetry/go-approvers @Aneurysm9
+detectors/gcp/                                                          @open-telemetry/go-approvers @dashpole
+
+instrumentation/github.com/astaxie/beego/otelbeego/                     @open-telemetry/go-approvers
+instrumentation/github.com/aws/aws-lambda-go/otellambda/                @open-telemetry/go-approvers @Aneurysm9
+instrumentation/github.com/aws/aws-sdk-go-v2/otelaws/                   @open-telemetry/go-approvers @Aneurysm9
+instrumentation/github.com/bradfitz/gomemcache/memcache/otelmemcache/   @open-telemetry/go-approvers
+instrumentation/github.com/emicklei/go-restful/otelrestful/             @open-telemetry/go-approvers
+instrumentation/github.com/gin-gonic/gin/otelgin/                       @open-telemetry/go-approvers @hanyuancheung 
+instrumentation/github.com/go-kit/kit/otelkit/                          @open-telemetry/go-approvers
+instrumentation/github.com/gocql/gocql/otelgocql/                       @open-telemetry/go-approvers
+instrumentation/github.com/gorilla/mux/otelmux/                         @open-telemetry/go-approvers
+instrumentation/github.com/labstack/echo/otelecho/                      @open-telemetry/go-approvers
+instrumentation/github.com/Shopify/sarama/otelsarama/                   @open-telemetry/go-approvers @pellared @hanyuancheung 
+instrumentation/go.mongodb.org/mongo-driver/mongo/otelmongo/            @open-telemetry/go-approvers
+instrumentation/google.golang.org/grpc/otelgrpc/                        @open-telemetry/go-approvers @dashpole @hanyuancheung 
+instrumentation/gopkg.in/macaron.v1/otelmacaron/                        @open-telemetry/go-approvers
+
+instrumentation/host/                                                   @open-telemetry/go-approvers @MadVikingGod
+instrumentation/net/http/httptrace/otelhttptrace/                       @open-telemetry/go-approvers @Aneurysm9 @dmathieu
+instrumentation/net/http/otelhttp/                                      @open-telemetry/go-approvers @Aneurysm9 @dmathieu
+instrumentation/runtime/                                                @open-telemetry/go-approvers @MadVikingGod
+
+propagators/autoprop/                                                   @open-telemetry/go-approvers @MrAlias
+propagators/aws/                                                        @open-telemetry/go-approvers @Aneurysm9
+propagators/b3/                                                         @open-telemetry/go-approvers @pellared
+propagators/jaeger/                                                     @open-telemetry/go-approvers
+propagators/opencensus/                                                 @open-telemetry/go-approvers @dashpole
+propagators/ot/                                                         @open-telemetry/go-approvers
+
+samplers/aws/xray/                                                      @open-telemetry/go-approvers @Aneurysm9
+samplers/jaegerremote/                                                  @open-telemetry/go-approvers
+samplers/probability/consistent/                                        @open-telemetry/go-approvers @MadVikingGod
+
+zpages/                                                                 @open-telemetry/go-approvers
+instrgen/                                                               @open-telemetry/go-approvers @MrAlias @pdelewski