Assuming all you have done is migrate from using the CS6 versions of InDesign, Illustrator, and Photoshop to the CC versions of the same programs, any fonts that are already installed on your system, whether they be Type 1, TrueType, or any flavor of OpenType, should be immediately available to the CC versions of those applications.
However, if you are not only migrating versions of the Adobe applications, but are simultaneously moving to a new computer system, yes, you will need to install those legacy Type 1 fonts on your computer system. The process of installing Type 1 fonts has not changed since Windows XP. Close all applications. From whatever directory is storing the font files (both the .pfb and .pfm files are required), right click on the .pfm file and select either Install (or if you have the latest Windows 10 update, Install for all users). That will result in the .pfm and the .pfb files being copied to the correct location and proper Windows registry entries being made such that the Type 1 fonts are available to all applications supporting same (most Microsoft applications such as the Office applications no longer support Type 1 fonts at all). The next time you run your applications, the Type 1 fonts should be available in your font lists. You should also be able to see the fonts in the Fonts Control Panel.
All this having been said, it would seriously behoove you to migrate from Type 1 fonts to OpenType fonts when at all possible. The Adobe applications are optimized for use of the OpenType fonts and both their encodings and layout features which are not available with Type 1 fonts.
And, by the way, for at least the last decade, none of the CS applications shipped with any Type 1 fonts. Those Type 1 fonts you have date back quite a while!
- Dov