- add first draft of iiocInstaller and FromAssembly

FromAssembly.md

@@ -0,0 +1 @@
+The `FromAssembly` class is a static helper class that supplies methods to find the wanted `Assembly` for an `IAssemblyInstaller`. Is acts similar to a factory in the way that its methods return a new instance of an `IAssemblyInstaller` with the assembly that they provide.

Home.md

@@ -18,6 +18,7 @@ Welcome to the Lightweight IOC Container wiki!
   - [Use factories to resolve instances](Advanced-Usage-of-Lightweight-IOC-Container#Use-factories-to-resolve-instances)
 - Detailed documentation
   - [Abstract factories](Abstract-factories)
+  - [`FromAssembly`](FromAssembly)  
   - [IIocInstaller](IIocInstaller)
   - [Lifestyles](Lifestyles)
   - [`RegistrationFactory`](RegistrationFactory)

IIocInstaller.md

@@ -1 +1,64 @@
 The `IIocInstaller` interface is the base class for all installers that are used by the `IocContainer`.
+
+## Base interface
+
+The base interface only consists of one method, the `Install()` method:
+
+```c#
+void Install(IIocContainer container);
+```
+
+The `Install()` method installs the given `IRegistrationBase`s in the given `IIocContainer`.
+
+To create your own installer, you have to implement the `IIocInstaller` interface and the `Install()` method. Inside the `Install()` method you have to register the `IRegistrationBase`s with the given `IIocContainer`:
+
+```c#
+container.Register(RegistrationFactory.Register<IFoo, Foo>());
+```
+
+The following is an example `IIocInstaller`:
+
+```c#
+public class Installer : IIocInstaller
+{
+    public void Install(IIocContainer container)
+    {
+        container.Register(RegistrationFactory.Register<IFoo, Foo>());
+    }
+}
+```
+
+## `AssemblyInstaller`
+
+The `AssemblyInstaller` is an implementation of the `IIocInstaller`. It installs all `IIocInstaller`s for a given `Assembly`.  
+To do so, it checks each `Type` in the `Assembly` it is given if it is derived from `IIocInstaller`:
+
+```c#
+public AssemblyInstaller(Assembly assembly)
+{
+    Installers = new List<IIocInstaller>();
+
+    Type[] types = assembly.GetTypes();
+    foreach (Type type in types)
+    {
+        if (!typeof(IIocInstaller).IsAssignableFrom(type))
+            continue;
+
+        Installers.Add((IIovInstaller) Activator.CreateInstance(type));;
+    }
+}
+```
+
+This list of `IIocInstaller`s is then installed when the `AssemblyInstaller`s `Install()` method is called:
+
+```c#
+public void Install(IIocContainer container)
+{
+    foreach (IIocInstaller installer in Installers)
+    {
+        installer.Install(container);
+    }
+}
+```
+
+With the help of the [`FromAssembly`](FromAssembly) class, `AssemblyInstaller`s can be created and provided with their needed `Assembly`.

_Sidebar.md

@@ -16,6 +16,7 @@
   - [Use factories to resolve instances](Advanced-Usage-of-Lightweight-IOC-Container#Use-factories-to-resolve-instances)
 - Detailed documentation
   - [Abstract factories](Abstract-factories)
+  - [`FromAssembly`](FromAssembly)
   - [IIocInstaller](IIocInstaller)
   - [Lifestyles](Lifestyles)
   - [`RegistrationFactory`](RegistrationFactory)