Rework Monitoring, Prometheus, Status system

Package Monitoring :
- use packag dedicated to monitor component
- each monitor work as standalone server to monitor health
- collect metrics to export them to prometheus exporter

Package Prometheus :
- review to simplify use for API and not API metrics
- optimize code

Package Status :
- Rework to use Monitor package
- Rework to use native json / text Marshaller interface

Context :
- rework context config (context var) to use sync map and sync RWMutex (WORM)
- move gin context to dedicated sub package (dependancies of logger make circular dependencies)
- optimize code

Config :
- rework to optimize sync / collect of component
- rework status to monitor
- remove monitor managment from config to each component
- add a func to set default logger to implement inherit default logger options
- optimize code

IOUtils :
- isolate logger / closer interface as a usable & public interface & instance
- this interface / instance allow to collect io.closer over a context to close all if context is done

Logger :
- rework to use context.config map
- rework to use ioutils closer
- rework to allow options to inherit a default options, or the last version of options
- optimize code

Size :
- Add package Size to calculate and manipulate size Byte or bit
- Add encoding : Text/JSON/Yaml/Toml...
- Add option to défine default unit : Byte or bit

Other :
- adjust following code
- optimize code
- limit use of atomic value
- rework to use RWMutex instead of sync.Mutex to maximize capabilities of read instead of write
- remove 32bit build for CI/CD
- add darwin/arm64 build for CI/CD

Bump Dependencies

httpserver/handler.go

@@ -0,0 +1,103 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2022 Nicolas JUHEL
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ *
+ */
+
+package httpserver
+
+import (
+	"net/http"
+
+	srvtps "github.com/nabbar/golib/httpserver/types"
+)
+
+func (o *srv) Handler(h srvtps.FuncHandler) {
+	o.m.Lock()
+	defer o.m.Unlock()
+	o.h = h
+}
+
+func (o *srv) HandlerGet(key string) http.Handler {
+	o.m.RLock()
+	defer o.m.RUnlock()
+
+	if o.h == nil {
+		return srvtps.NewBadHandler()
+	} else if l := o.h(); len(l) < 1 {
+		return srvtps.NewBadHandler()
+	} else if h, k := l[key]; !k {
+		return srvtps.NewBadHandler()
+	} else {
+		return h
+	}
+}
+
+func (o *srv) HandlerGetValidKey() string {
+	if i, l := o.c.Load(cfgHandler); !l {
+		return srvtps.BadHandlerName
+	} else if _, f := i.(*srvtps.BadHandler); f {
+		return srvtps.BadHandlerName
+	} else if i == nil {
+		return srvtps.BadHandlerName
+	} else if i, l = o.c.Load(cfgHandlerKey); !l {
+		return srvtps.BadHandlerName
+	} else if v, k := i.(string); !k {
+		return srvtps.BadHandlerName
+	} else {
+		return v
+	}
+}
+
+func (o *srv) HandlerHas(key string) bool {
+	o.m.RLock()
+	defer o.m.RUnlock()
+
+	if o.h == nil {
+		return false
+	} else if l := o.h(); len(l) < 1 {
+		return false
+	} else {
+		_, k := l[key]
+		return k
+	}
+}
+
+func (o *srv) HandlerStoreFct(key string) {
+	o.c.Store(cfgHandler, func() http.Handler {
+		return o.HandlerGet(key)
+	})
+	o.c.Store(cfgHandlerKey, key)
+}
+
+func (o *srv) HandlerLoadFct() http.Handler {
+	if i, l := o.c.Load(cfgHandler); !l {
+		return srvtps.NewBadHandler()
+	} else if v, k := i.(func() http.Handler); !k {
+		return srvtps.NewBadHandler()
+	} else if h := v(); h == nil {
+		return srvtps.NewBadHandler()
+	} else {
+		return h
+	}
+}