Fix the format of some doc.odin files of the core library which did not made into the documentation.

`c/frontend/tokenizer`:
   add proper "Example:" header to demo example code,
   removed empty lines.
`container/bit_array`:
   moved comment before package;
   aligned narrative lines to left margin;
   converted case lines into bulleted lines ("- ");
   converted individual examples to single-tab-indented preformatted text.
`dynlib`:
   removed "//+build ignore" line;
   added newline at EOF.
`image/netpmb`:
   converted indented lines of "Reading", "Wrting" and "Some syntax..." into bulleted lists;
   "Formats" indented lines kept as they are as the preformatted text seems relevant to keep the alignments;
   doubly indented lines kept as single-indented to keep them different (as the format does not allow for two-level bulleted lists);
   removed empy lines.
`os/os2`:	WIP, not modified
`sys/info`:
   removed "//+build ignore" line;
   converted tab-indented initial description into regular left-margin comment;
   moved uncommented sample code within the doc comment as an "Example:";
   moved simple- and double-tabbed separate comments with sample Windows and macOS outputs within the doc comment as bulleted headlines with preformatted output listings;
   removed now empty comments and blank lines after the package line.
`text/i18n`:
   removed "//+build ignore" line;
   moved the pacakge line at the end;
   de-indented the tab-indented introductory narrative;
   moved sample code comments into the doc comment as tab-indented code with a proper "Example:" heading;
   removed "```" MD attempts at code formatting.
`text/table`:
   unindented the comment lines of a descriptive kind;
   headlines of major subdivisions are marked as bold;
   kept code samples as tab-indented preformatted text (as there are several of them, the standard "Example:" and "Output:" headings cannot be used) removing the "```" MD attempts at code formatting;
   removed in-between blank lines.

core/text/table/doc.odin

@@ -1,11 +1,8 @@
 /*
-	package table implements ascii/markdown/html/custom rendering of tables.
+The package `table` implements ASCII/markdown/HTML/custom rendering of tables.
 
-	---
+**Custom rendering example:**
 
-	Custom rendering example:
-
-	```odin
 	tbl := init(&Table{})
 	padding(tbl, 0, 1)
 	row(tbl, "A_LONG_ENUM", "= 54,", "// A comment about A_LONG_ENUM")
@@ -17,19 +14,14 @@
 		}
 		io.write_byte(stdio_writer(), '\n')
 	}
-	```
 
-	This outputs:
-	```
+This outputs:
+
 	A_LONG_ENUM         = 54, // A comment about A_LONG_ENUM
 	AN_EVEN_LONGER_ENUM = 1,  // A comment about AN_EVEN_LONGER_ENUM
-	```
 
-	---
+**ASCII rendering example:**
 
-	ASCII rendering example:
-
-	```odin
 	tbl := init(&Table{})
 	defer destroy(tbl)
 
@@ -69,10 +61,9 @@
 
 	write_ascii_table(stdio_writer(), tbl)
 	write_markdown_table(stdio_writer(), tbl)
-	```
 
-	This outputs:
-	```
+This outputs:
+
 	+-----------------------------------------------+
 	|  This is a table caption and it is very long  |
 	+------------------+-----------------+----------+
@@ -82,19 +73,15 @@
 	| 000000005        | 6.283185        |          |
 	|        a         | bbb             | c        |
 	+------------------+-----------------+----------+
-	```
 
-	and
+and
 
-	```
 	|    AAAAAAAAA     |        B        |    C     |
 	|:-----------------|:---------------:|---------:|
 	| 123              | foo             |          |
 	| 000000005        | 6.283185        |          |
 	| a                | bbb             | c        |
-	```
 
-	respectively.
+respectively.
 */
-
 package text_table