SQL Server 2014 :: Dynamic Trigger Logging

I would like to have a dynamic trigger on INSERT, UPDATE and DELETE. (each their own trigger).

What i want, is the trigger to log what has happened with the record. For the insert trigger, i would like to select all columns and put them in 1 column to my logging table. For the update trigger, i need the same, however for both of the old and new items.

For example:

CREATE TABLE [dbo].[TRIGGER_TEST](
[COLUMNA] [int] IDENTITY(1,1) NOT NULL,
[COLUMNB] [nvarchar](50) NOT NULL,
[COLUMNC] [nvarchar](20) NULL,
[COLUMND] [date] NULL,
[COLUME] [decimal](2, 2) NULL,

[Code] ....

When I insert an item in TRIGGER_TEST, i would like to see what is inserted in the TRIGGER_LOGGING table.

INSERT INTO [dbo].[TRIGGER_TEST]
([COLUMNB]
,[COLUMNC]
,[COLUMND]
,[COLUME])
VALUES
('test'
,'hello'
,getdate()
,0.1)
GO

I would like to see in my TRIGGER_LOGGING table in NEW:

COLUMNB='test'|COLUMNC='hello'|COLUMND='2015-10-13 16:04'|COLUME=0,10