Update coding standard for examples

[BillWagner]

See #9 (comment)

Our coding style was optimized for the printed page. We've agreed to update the examples to follow a more consistent C# coding standard that uses whitespace to improve readability.

Much of the code is fine, but we will adopt the following updates:

• Add a blank line between peer declarations. There is one exception to this rule: If a group of peer declarations all have empty bodies (e.g. class C {} or public void M() {}, then no blank line is added between them.
• Different types of elements can be grouped without blank lines. When that's done, there should be a blank line between elements of different types. (e.g. all private fields can be declared without a blank line, but there should be a blank line between the group of private fields and method declarations).

We have discussed replacing the K&R style braces on methods with Allman style braces. We haven't made an affirmative decision on that.

[jskeet]

I suggest we defer discussing this one until a meeting where Mads is present.

[jskeet]

Next actions:

• Jon to amend the Word converter to spit out a histogram of line lengths
• Jointly decide between 2 or 4 space indents
• Bill and Jon to go through all examples to use consistent format

[jskeet]

Histogram of line lengths (length:count) for C# code:

  0: 188
  1: 1148
  2: 14
  3: 33
  4: 126
  5: 508
  6: 26
  7: 133
  8: 20
  9: 128
  10: 200
  11: 63
  12: 116
  13: 198
  14: 130
  15: 86
  16: 123
  17: 124
  18: 146
  19: 108
  20: 94
  21: 91
  22: 104
  23: 106
  24: 154
  25: 115
  26: 110
  27: 106
  28: 107
  29: 118
  30: 87
  31: 79
  32: 96
  33: 85
  34: 76
  35: 77
  36: 74
  37: 63
  38: 76
  39: 53
  40: 49
  41: 64
  42: 34
  43: 41
  44: 47
  45: 39
  46: 41
  47: 54
  48: 48
  49: 36
  50: 31
  51: 34
  52: 42
  53: 28
  54: 24
  55: 29
  56: 41
  57: 31
  58: 31
  59: 28
  60: 32
  61: 22
  62: 27
  63: 12
  64: 27
  65: 22
  66: 22
  67: 22
  68: 24
  69: 14
  70: 23
  71: 10
  72: 13
  73: 14
  74: 14
  75: 16
  76: 12
  77: 9
  78: 4
  79: 12
  80: 4
  81: 4
  82: 3
  83: 2
  84: 3
  86: 1
  88: 2
  89: 3
  90: 2
  92: 1
  101: 2
  102: 1
  104: 1
  118: 1

Having printed out all the lines with over 70 characters, almost all of them include comments that could be moved quite easily.

Looking at the converted Word document, I think we're actually safe to about 95 characters, which gives us quite a lot of wiggle room.

I propose we use a 4-space indent.

[jskeet]

Done.